ARM64 support was introduced in Windows 10. There is no need to pack the
EV signed ARM64 driver for older Windows releases.
The only use-case we do want to pack an EV signed ARM64 driver (or test
signed) in the installer.dll is when we are doing the rundll32.exe
tests. Therefore, the Debug version still packs it.
If there is no driver available to pack, fail at compile time - rather
than build an installer.dll that would fail at runtime.
Signed-off-by: Simon Rozman <simon@rozman.si>