OvmfPkg: Add a new GUID called gRtcRegisterBaseAddressHobGuid

Added a new GUID use for store the RTC register base address if the
platform can not uses the dynamic PCD in PEI stage.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec
index ad7c196..e1ef842 100644
--- a/OvmfPkg/OvmfPkg.dec
+++ b/OvmfPkg/OvmfPkg.dec
@@ -172,6 +172,7 @@
   gEfiNonCcFvGuid                       = {0xae047c6d, 0xbce9, 0x426c, {0xae, 0x03, 0xa6, 0x8e, 0x3b, 0x8a, 0x04, 0x88}}

   gOvmfVariableGuid                     = {0x50bea1e5, 0xa2c5, 0x46e9, {0x9b, 0x3a, 0x59, 0x59, 0x65, 0x16, 0xb0, 0x0a}}

   gQemuFirmwareResourceHobGuid          = {0x3cc47b04, 0x0d3e, 0xaa64, {0x06, 0xa6, 0x4b, 0xdc, 0x9a, 0x2c, 0x61, 0x19}}

+  gRtcRegisterBaseAddressHobGuid        = {0x40435d97, 0xeb37, 0x4a4b, {0x7f, 0xad, 0xb7, 0xed, 0x72, 0xa1, 0x43, 0xc5}}

 

 [Ppis]

   # PPI whose presence in the PPI database signals that the TPM base address