ArmVirtPkg/ArmVirtQemu: avoid unnecessary use of $(ARCH) conditional

(cherry picked from commit cac73c4)

ARCH as set by "build" command is not really useful for
conditionals, so move AArch64-specific Pcd to
[PcdsFixedAtBuild.AARCH64].

Signed-off-by: Leif Lindholm <quic_llindhol@quicinc.com>
(cherry picked from commit cac73c4)

Change-Id: I9c37b6a23417d9d1a1ed4076461e133ea5145510

Author: leiflindholm

ArmVirtPkg/ArmVirtQemu.dsc

@@ -151,10 +151,6 @@
   gArmVirtTokenSpaceGuid.PcdTpm2SupportEnabled|$(TPM2_ENABLE)
 
 [PcdsFixedAtBuild.common]
-!if $(ARCH) == AARCH64
-  gArmTokenSpaceGuid.PcdVFPEnabled|1
-!endif
-
   gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFdBaseAddress|0x00000000
   gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareFdSize|$(FD_SIZE)
 
@@ -245,6 +241,8 @@
   # point only, for entry point versions >= 3.0.
   gEfiMdeModulePkgTokenSpaceGuid.PcdSmbiosEntryPointProvideMethod|0x2
 
+  gArmTokenSpaceGuid.PcdVFPEnabled|1
+
 [PcdsDynamicDefault.common]
   gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|3