OvmfPkg/PlatformInitLib: Add hob functions

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

In this patch of PlatformInitLib, below hob functions are introduced:
 - PlatformAddIoMemoryBaseSizeHob
 - PlatformAddIoMemoryRangeHob
 - PlatformAddMemoryBaseSizeHob
 - PlatformAddMemoryRangeHob
 - PlatformAddReservedMemoryBaseSizeHob

They correspond the below functions in OvmfPkg/PlatformPei:
 - AddIoMemoryBaseSizeHob
 - AddIoMemoryRangeHob
 - AddMemoryBaseSizeHob
 - AddMemoryRangeHob
 - AddReservedMemoryBaseSizeHob

After above hob functions are introduced in PlatformInitLib,
OvmfPkg/PlatformPei is refactored with this library.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>

OvmfPkg/PlatformPei/Platform.h

@@ -11,37 +11,6 @@
 
 #include <IndustryStandard/E820.h>
 
-VOID
-AddIoMemoryBaseSizeHob (
-  EFI_PHYSICAL_ADDRESS  MemoryBase,
-  UINT64                MemorySize
-  );
-
-VOID
-AddIoMemoryRangeHob (
-  EFI_PHYSICAL_ADDRESS  MemoryBase,
-  EFI_PHYSICAL_ADDRESS  MemoryLimit
-  );
-
-VOID
-AddMemoryBaseSizeHob (
-  EFI_PHYSICAL_ADDRESS  MemoryBase,
-  UINT64                MemorySize
-  );
-
-VOID
-AddMemoryRangeHob (
-  EFI_PHYSICAL_ADDRESS  MemoryBase,
-  EFI_PHYSICAL_ADDRESS  MemoryLimit
-  );
-
-VOID
-AddReservedMemoryBaseSizeHob (
-  EFI_PHYSICAL_ADDRESS  MemoryBase,
-  UINT64                MemorySize,
-  BOOLEAN               Cacheable
-  );
-
 VOID
 AddressWidthInitialization (
   VOID