Update the way to allocate high PMM, firstly try to allocate high PMM below 16MB, if it fails, allocate high PMM below 4GB.

Signed-off-by: li-elvin <elvin.li@intel.com>
Reviewed-by: jyao1 <jiewen.yao@intel.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13352 6f19259b-4bc3-4df7-8a09-765794883524
1 file changed