MdeModulePkg/CoreDxe: Allow DXE Drivers to use untested memory

MdeModulePkg/CoreDxe: Allow DXE Drivers to use untested memory

REF: https://https://bugzilla.tianocore.org/show_bug.cgi?id=3795
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Updated CoreInternalAllocatePages() to call PromoteMemoryResource() and
re-attempt the allocation if unable to convert the specified memory range

Signed-off-by: Stacy Howell <stacy.howell@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>