[Patch v2 20/28] ArmVirtPkg: Add reference to ProtectedVariableNull

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

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

Need reference to ProtectVariableNullLib otherwise build fails.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
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>
---
 ArmVirtPkg/ArmVirtQemu.dsc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ArmVirtPkg/ArmVirtQemu.dsc b/ArmVirtPkg/ArmVirtQemu.dsc
index aa0ce61630f7..cdebd94a9fce 100644
--- a/ArmVirtPkg/ArmVirtQemu.dsc
+++ b/ArmVirtPkg/ArmVirtQemu.dsc
@@ -1,7 +1,7 @@
 #
 #  Copyright (c) 2011-2015, ARM Limited. All rights reserved.
 #  Copyright (c) 2014, Linaro Limited. All rights reserved.
-#  Copyright (c) 2015 - 2020, Intel Corporation. All rights reserved.
+#  Copyright (c) 2015 - 2022, Intel Corporation. All rights reserved.
 #
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -81,6 +81,7 @@ [LibraryClasses.common]
   PciSegmentLib|MdePkg/Library/BasePciSegmentLibPci/BasePciSegmentLibPci.inf
   PciHostBridgeLib|OvmfPkg/Fdt/FdtPciHostBridgeLib/FdtPciHostBridgeLib.inf
   PciHostBridgeUtilityLib|OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
+  ProtectedVariableLib|MdeModulePkg/Library/ProtectedVariableLibNull/ProtectedVariableLibNull.inf
 
 !if $(TPM2_ENABLE) == TRUE
   Tpm2CommandLib|SecurityPkg/Library/Tpm2CommandLib/Tpm2CommandLib.inf
-- 
2.35.1.windows.2