MdePkg: Add memory more reliable definitions.

PiHob.h: EFI_RESOURCE_ATTRIBUTE_MORE_RELIABLE resource attribute.
PiDxeCis: EfiGcdMemoryTypeMoreReliable GCD memory type.
UefiSpec.h: EFI_MEMORY_MORE_RELIABLE memory attribute.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17399 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Include/Pi/PiDxeCis.h

@@ -53,6 +53,11 @@ typedef enum {
   /// This memory supports byte-addressable non-volatility. 
   ///
   EfiGcdMemoryTypePersistentMemory,
+  ///
+  /// A memory region that provides higher reliability relative to other memory in the
+  /// system. If all memory has the same reliability, then this bit is not used.
+  ///
+  EfiGcdMemoryTypeMoreReliable,
   EfiGcdMemoryTypeMaximum
 } EFI_GCD_MEMORY_TYPE;