to return EFI_NOT_FOUND when a specified variable doesn't exist and
Data parameter is NULL but DataSize parameter is valid in GetVariable() invocation.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17030 6f19259b-4bc3-4df7-8a09-765794883524