MdePkg: Support EFI_PEI_CORE_FV_LOCATION_PPI

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1524

Add EFI_PEI_CORE_FV_LOCATION_PPI definition basing on
PI spec 1.7, Section 6.3.9.
This PPI can support the secnario that PEI Foundation
not in BFV.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Chasel Chiu <chasel.chiu@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>

MdePkg/Include/Ppi/PeiCoreFvLocation.h

@@ -0,0 +1,48 @@
+/** @file
+  Header file for Pei Core FV Location PPI.
+
+  This PPI contains a pointer to the firmware volume which contains the PEI Foundation.
+  If the PEI Foundation does not reside in the BFV, then SEC must pass this PPI as a part
+  of the PPI list provided to the PEI Foundation Entry Point, otherwise the PEI Foundation
+  shall assume that it resides within the BFV.
+
+  Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+  @par Revision Reference:
+  This PPI is defined in UEFI Platform Initialization Specification 1.7 Volume 1:
+  Standards
+
+**/
+
+
+#ifndef _EFI_PEI_CORE_FV_LOCATION_H_
+#define _EFI_PEI_CORE_FV_LOCATION_H_
+
+///
+/// Global ID for EFI_PEI_CORE_FV_LOCATION_PPI
+///
+#define EFI_PEI_CORE_FV_LOCATION_GUID \
+  { \
+    0x52888eae, 0x5b10, 0x47d0, {0xa8, 0x7f, 0xb8, 0x22, 0xab, 0xa0, 0xca, 0xf4 } \
+  }
+
+///
+/// This PPI provides location of EFI PeiCoreFv.
+///
+typedef struct {
+  ///
+  /// Pointer to the first byte of the firmware volume which contains the PEI Foundation.
+  ///
+  VOID    *PeiCoreFvLocation;
+} EFI_PEI_CORE_FV_LOCATION_PPI;
+
+extern EFI_GUID gEfiPeiCoreFvLocationPpiGuid;
+
+#endif // _EFI_PEI_CORE_FV_LOCATION_H_