UserAuthFeaturePkg/PlatformPasswordLibNull: Add UEFI app support
Enable library use with UEFI_APPLICATION components similarly to the
other libraries in the package.
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Guillermo Antonio Palomino Sosa <guillermo.a.palomino.sosa@intel.com>
Signed-off-by: Isaac Oram <isaac.w.oram@intel.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>