StandaloneMmPkg/Core: add missing GUID reference

The Standalone core uses gEfiHobMemoryAllocModuleGuid, but failed to
declare this in its INF.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Tested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
1 file changed