[PATCH v4 02/28] MdeModulePkg: Add reference to new Ppi Guid

["Judah Vang" <judah.vang@intel.com>]

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2594

Add reference to gEfiPeiVariableStoreDiscoveredPpiGuid which
contains information whether variable store is available.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Nishant C Mistry <nishant.c.mistry@intel.com>
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Signed-off-by: Nishant C Mistry <nishant.c.mistry@intel.com>
Signed-off-by: Judah Vang <judah.vang@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
---
 MdePkg/Include/Ppi/ReadOnlyVariable2.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/MdePkg/Include/Ppi/ReadOnlyVariable2.h b/MdePkg/Include/Ppi/ReadOnlyVariable2.h
index 926c0bc82a43..c5a8470565bb 100644
--- a/MdePkg/Include/Ppi/ReadOnlyVariable2.h
+++ b/MdePkg/Include/Ppi/ReadOnlyVariable2.h
@@ -2,7 +2,7 @@
   This file declares Read-only Variable Service2 PPI.
   This ppi permits read-only access to the UEFI variable store during the PEI phase.
 
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2022, Intel Corporation. All rights reserved.<BR>
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
   @par Revision Reference:
@@ -106,4 +106,6 @@ struct _EFI_PEI_READ_ONLY_VARIABLE2_PPI {
 
 extern EFI_GUID  gEfiPeiReadOnlyVariable2PpiGuid;
 
+extern EFI_GUID  gEfiPeiVariableStoreDiscoveredPpiGuid;
+
 #endif
-- 
2.35.1.windows.2