ARM64 detection and path building faulty

[nefarius]

On ARM64 (Windows 11 on Mac OS via Parallels) the short architecture name is incorrect, resulting in the wrong driver package being selected:

Calling custom action DsHidMini.Installer!Nefarius.DsHidMini.Setup.CustomActions.InstallDrivers
installDir = C:\Program Files\Nefarius Software Solutions\DsHidMini\
driversDir = C:\Program Files\Nefarius Software Solutions\DsHidMini\drivers
nefconDir = C:\Program Files\Nefarius Software Solutions\DsHidMini\nefcon
archShortName = X64
nefconcPath = C:\Program Files\Nefarius Software Solutions\DsHidMini\nefcon\X64\nefconc.exe
dshidminiDriverDir = C:\Program Files\Nefarius Software Solutions\DsHidMini\drivers\dshidmini_X64
igfilterDriverDir = C:\Program Files\Nefarius Software Solutions\DsHidMini\drivers\nssmkig_X64
dshidminiInfPath = C:\Program Files\Nefarius Software Solutions\DsHidMini\drivers\dshidmini_X64\dshidmini.inf
igfilterInfPath = C:\Program Files\Nefarius Software Solutions\DsHidMini\drivers\nssmkig_X64\igfilter.inf
igfilter command stdout: 2024-07-07 13:56:13,027 ERROR  No DefaultInstall and no Manufacturer section, can't continue
2024-07-07 13:56:13,028 ERROR  Failed to install INF file, error: LEER
Failed to install INF file, error: The system cannot find message text for message number 0x%1 in the message file for %2.


igfilter command stderr: 
Filter installer failed with exit code: 6
CustomAction InstallDrivers returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)
Action ended 13:56:13: InstallFinalize. Return value 3.