StdLib: Fix possible compiler warnings when doing enumerate type comparison.

Signed-off-by: Sun Rui <rui.sun@intel.com>
Reviewed-by: Gao Liming <liming.gao@intel.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13695 6f19259b-4bc3-4df7-8a09-765794883524
1 file changed