Disable most of MTD

Besides some support for directly flashing BIOS chips which is marked as
DANGEROUS, these seem only useful on embedded devices.

Only leave the simulator and the MTD-on-block emulator.

config

@@ -2230,17 +2230,14 @@ CONFIG_GNSS_MTK_SERIAL=m
 CONFIG_GNSS_SIRF_SERIAL=m
 CONFIG_GNSS_UBX_SERIAL=m
 CONFIG_MTD=m
-CONFIG_MTD_TESTS=m
+# CONFIG_MTD_TESTS is not set
 
 #
 # Partition parsers
 #
-CONFIG_MTD_AR7_PARTS=m
+# CONFIG_MTD_AR7_PARTS is not set
-CONFIG_MTD_CMDLINE_PARTS=m
+# CONFIG_MTD_CMDLINE_PARTS is not set
-CONFIG_MTD_REDBOOT_PARTS=m
+# CONFIG_MTD_REDBOOT_PARTS is not set
-CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
-# CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED is not set
-# CONFIG_MTD_REDBOOT_PARTS_READONLY is not set
 # end of Partition parsers
 
 #
@@ -2248,124 +2245,86 @@ CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
 #
 CONFIG_MTD_BLKDEVS=m
 CONFIG_MTD_BLOCK=m
-CONFIG_MTD_BLOCK_RO=m
+# CONFIG_MTD_BLOCK_RO is not set
-CONFIG_FTL=m
+# CONFIG_FTL is not set
-CONFIG_NFTL=m
+# CONFIG_NFTL is not set
-CONFIG_NFTL_RW=y
+# CONFIG_INFTL is not set
-CONFIG_INFTL=m
+# CONFIG_RFD_FTL is not set
-CONFIG_RFD_FTL=m
+# CONFIG_SSFDC is not set
-CONFIG_SSFDC=m
+# CONFIG_SM_FTL is not set
-CONFIG_SM_FTL=m
+# CONFIG_MTD_OOPS is not set
-CONFIG_MTD_OOPS=m
 CONFIG_MTD_PSTORE=m
-CONFIG_MTD_SWAP=m
+# CONFIG_MTD_SWAP is not set
-CONFIG_MTD_PARTITIONED_MASTER=y
+# CONFIG_MTD_PARTITIONED_MASTER is not set
 
 #
 # RAM/ROM/Flash chip drivers
 #
-CONFIG_MTD_CFI=m
+# CONFIG_MTD_CFI is not set
-CONFIG_MTD_JEDECPROBE=m
+# CONFIG_MTD_JEDECPROBE is not set
-CONFIG_MTD_GEN_PROBE=m
-# CONFIG_MTD_CFI_ADV_OPTIONS is not set
 CONFIG_MTD_MAP_BANK_WIDTH_1=y
 CONFIG_MTD_MAP_BANK_WIDTH_2=y
 CONFIG_MTD_MAP_BANK_WIDTH_4=y
 CONFIG_MTD_CFI_I1=y
 CONFIG_MTD_CFI_I2=y
-CONFIG_MTD_CFI_INTELEXT=m
+# CONFIG_MTD_RAM is not set
-CONFIG_MTD_CFI_AMDSTD=m
+# CONFIG_MTD_ROM is not set
-CONFIG_MTD_CFI_STAA=m
+# CONFIG_MTD_ABSENT is not set
-CONFIG_MTD_CFI_UTIL=m
-CONFIG_MTD_RAM=m
-CONFIG_MTD_ROM=m
-CONFIG_MTD_ABSENT=m
 # end of RAM/ROM/Flash chip drivers
 
 #
 # Mapping drivers for chip access
 #
-CONFIG_MTD_COMPLEX_MAPPINGS=y
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
-CONFIG_MTD_PHYSMAP=m
+# CONFIG_MTD_INTEL_VR_NOR is not set
-# CONFIG_MTD_PHYSMAP_COMPAT is not set
+# CONFIG_MTD_PLATRAM is not set
-CONFIG_MTD_PHYSMAP_GPIO_ADDR=y
-CONFIG_MTD_SBC_GXX=m
-CONFIG_MTD_AMD76XROM=m
-CONFIG_MTD_ICHXROM=m
-CONFIG_MTD_ESB2ROM=m
-CONFIG_MTD_CK804XROM=m
-CONFIG_MTD_SCB2_FLASH=m
-CONFIG_MTD_NETtel=m
-CONFIG_MTD_L440GX=m
-CONFIG_MTD_PCI=m
-CONFIG_MTD_PCMCIA=m
-# CONFIG_MTD_PCMCIA_ANONYMOUS is not set
-CONFIG_MTD_INTEL_VR_NOR=m
-CONFIG_MTD_PLATRAM=m
 # end of Mapping drivers for chip access
 
 #
 # Self-contained MTD device drivers
 #
-CONFIG_MTD_PMC551=m
+# CONFIG_MTD_PMC551 is not set
-# CONFIG_MTD_PMC551_BUGFIX is not set
+# CONFIG_MTD_DATAFLASH is not set
-# CONFIG_MTD_PMC551_DEBUG is not set
+# CONFIG_MTD_MCHP23K256 is not set
-CONFIG_MTD_DATAFLASH=m
+# CONFIG_MTD_SST25L is not set
-# CONFIG_MTD_DATAFLASH_WRITE_VERIFY is not set
+# CONFIG_MTD_SLRAM is not set
-CONFIG_MTD_DATAFLASH_OTP=y
+# CONFIG_MTD_PHRAM is not set
-CONFIG_MTD_MCHP23K256=m
+# CONFIG_MTD_MTDRAM is not set
-CONFIG_MTD_SST25L=m
-CONFIG_MTD_SLRAM=m
-CONFIG_MTD_PHRAM=m
-CONFIG_MTD_MTDRAM=m
-CONFIG_MTDRAM_TOTAL_SIZE=4096
-CONFIG_MTDRAM_ERASE_SIZE=128
 CONFIG_MTD_BLOCK2MTD=m
 
 #
 # Disk-On-Chip Device Drivers
 #
-CONFIG_MTD_DOCG3=m
+# CONFIG_MTD_DOCG3 is not set
-CONFIG_BCH_CONST_M=14
-CONFIG_BCH_CONST_T=4
 # end of Self-contained MTD device drivers
 
 #
 # NAND
 #
 CONFIG_MTD_NAND_CORE=m
-CONFIG_MTD_ONENAND=m
+# CONFIG_MTD_ONENAND is not set
-# CONFIG_MTD_ONENAND_VERIFY_WRITE is not set
-CONFIG_MTD_ONENAND_GENERIC=m
-CONFIG_MTD_ONENAND_OTP=y
-CONFIG_MTD_ONENAND_2X_PROGRAM=y
 CONFIG_MTD_NAND_ECC_SW_HAMMING=m
 CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC=y
 CONFIG_MTD_RAW_NAND=m
-CONFIG_MTD_NAND_ECC_SW_BCH=y
+# CONFIG_MTD_NAND_ECC_SW_BCH is not set
 
 #
 # Raw/parallel NAND flash controllers
 #
-CONFIG_MTD_NAND_DENALI=m
+# CONFIG_MTD_NAND_DENALI_PCI is not set
-CONFIG_MTD_NAND_DENALI_PCI=m
+# CONFIG_MTD_NAND_CAFE is not set
-CONFIG_MTD_NAND_CAFE=m
+# CONFIG_MTD_NAND_MXIC is not set
-CONFIG_MTD_NAND_MXIC=m
+# CONFIG_MTD_NAND_GPIO is not set
-CONFIG_MTD_NAND_GPIO=m
+# CONFIG_MTD_NAND_PLATFORM is not set
-CONFIG_MTD_NAND_PLATFORM=m
+# CONFIG_MTD_NAND_ARASAN is not set
-CONFIG_MTD_NAND_ARASAN=m
 
 #
 # Misc
 #
-CONFIG_MTD_SM_COMMON=m
 CONFIG_MTD_NAND_NANDSIM=m
-CONFIG_MTD_NAND_RICOH=m
+# CONFIG_MTD_NAND_RICOH is not set
-CONFIG_MTD_NAND_DISKONCHIP=m
+# CONFIG_MTD_NAND_DISKONCHIP is not set
-# CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADVANCED is not set
+# CONFIG_MTD_SPI_NAND is not set
-CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0
-CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE=y
-CONFIG_MTD_SPI_NAND=m
 
 #
 # ECC engine support
@@ -2377,22 +2336,17 @@ CONFIG_MTD_NAND_ECC=y
 #
 # LPDDR & LPDDR2 PCM memory drivers
 #
-CONFIG_MTD_LPDDR=m
+# CONFIG_MTD_LPDDR is not set
-CONFIG_MTD_QINFO_PROBE=m
 # end of LPDDR & LPDDR2 PCM memory drivers
 
-CONFIG_MTD_SPI_NOR=m
+# CONFIG_MTD_SPI_NOR is not set
-CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y
-CONFIG_SPI_INTEL_SPI=m
-CONFIG_SPI_INTEL_SPI_PCI=m
-CONFIG_SPI_INTEL_SPI_PLATFORM=m
 CONFIG_MTD_UBI=m
 CONFIG_MTD_UBI_WL_THRESHOLD=4096
 CONFIG_MTD_UBI_BEB_LIMIT=20
-CONFIG_MTD_UBI_FASTMAP=y
+# CONFIG_MTD_UBI_FASTMAP is not set
-CONFIG_MTD_UBI_GLUEBI=m
+# CONFIG_MTD_UBI_GLUEBI is not set
-CONFIG_MTD_UBI_BLOCK=y
+# CONFIG_MTD_UBI_BLOCK is not set
-CONFIG_MTD_HYPERBUS=m
+# CONFIG_MTD_HYPERBUS is not set
 # CONFIG_OF is not set
 CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
 CONFIG_PARPORT=m
@@ -5664,7 +5618,6 @@ CONFIG_VIDEO_SAA7134_RC=y
 CONFIG_VIDEO_SAA7134_DVB=m
 CONFIG_VIDEO_SAA7134_GO7007=m
 CONFIG_VIDEO_SAA7164=m
-# CONFIG_VIDEO_COBALT is not set
 
 #
 # Media digital TV PCI Adapters
@@ -9792,8 +9745,6 @@ CONFIG_GENERIC_ALLOCATOR=y
 CONFIG_REED_SOLOMON=m
 CONFIG_REED_SOLOMON_ENC8=y
 CONFIG_REED_SOLOMON_DEC8=y
-CONFIG_REED_SOLOMON_DEC16=y
-CONFIG_BCH=m
 CONFIG_TEXTSEARCH=y
 CONFIG_TEXTSEARCH_KMP=m
 CONFIG_TEXTSEARCH_BM=m