ArmPlatformPkg: Move PcdStandalone from Feature PCD to Fixed PCD

Feature PCDs cannot be used in assembly files.
The PcdStandalone PCD is needed in one of the assembly file of the
ArmPlatformPkg/PrePi module.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11952 6f19259b-4bc3-4df7-8a09-765794883524

ArmPlatformPkg/PrePeiCore/MainMPCore.c

@@ -71,7 +71,7 @@ PrimaryMain (
   PL390GicEnableDistributor(PcdGet32(PcdGicDistributorBase));
 
   // If ArmVe has not been built as Standalone then we need to wake up the secondary cores
-  if (FeaturePcdGet(PcdStandalone) == FALSE) {
+  if (!PcdGet32(PcdStandalone)) {
     // Sending SGI to all the Secondary CPU interfaces
     PL390GicSendSgiTo (PcdGet32(PcdGicDistributorBase), GIC_ICDSGIR_FILTER_EVERYONEELSE, 0x0E);
   }