OvmfPkg: Implement MeasureHobList/MeasureFvImage

MeasureHobList and MeasureFvImage once were implemented in
SecMeasurementTdxLib. The intention of this patch-set is to refactor
SecMeasurementTdxLib to be an instance of TpmMeasurementLib. So these
2 functions (MeasureHobList/MeasureFvImage) are moved to
PeilessStartupLib. This is because:
1. RTMR based trusted boot is implemented in Config-B (See below link)
2. PeilessStartupLib is designed for PEI-less boot and it is the right
   place to do the measurement for Hoblist and Config-FV.

Config-B: https://edk2.groups.io/g/devel/message/76367

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>
Signed-off-by: Min Xu <min.m.xu@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

OvmfPkg/Library/PeilessStartupLib/PeilessStartupInternal.h

@@ -69,4 +69,40 @@ TdxValidateCfv (
   IN UINT32  TdxCfvSize
   );
 
+/**
+  Measure the Hoblist passed from the VMM.
+
+  @param[in] VmmHobList    The Hoblist pass the firmware
+
+  @retval EFI_SUCCESS           Fv image is measured successfully
+                                or it has been already measured.
+  @retval Others                Other errors as indicated
+**/
+EFI_STATUS
+EFIAPI
+MeasureHobList (
+  IN CONST VOID  *VmmHobList
+  );
+
+/**
+  Measure FV image.
+
+  @param[in]  FvBase            Base address of FV image.
+  @param[in]  FvLength          Length of FV image.
+  @param[in]  PcrIndex          Index of PCR
+
+  @retval EFI_SUCCESS           Fv image is measured successfully
+                                or it has been already measured.
+  @retval EFI_OUT_OF_RESOURCES  No enough memory to log the new event.
+  @retval EFI_DEVICE_ERROR      The command was unsuccessful.
+
+**/
+EFI_STATUS
+EFIAPI
+MeasureFvImage (
+  IN EFI_PHYSICAL_ADDRESS  FvBase,
+  IN UINT64                FvLength,
+  IN UINT8                 PcrIndex
+  );
+
 #endif