Fix file headers

Move stack alignment check from CPU specific files into common SwitchStack() function and add VA_END() to SwitchStack().
Fix incorrect syntax for ASM_FUNCTION_REMOVE_IF_UNREFERENCED






git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9193 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseLib/SwitchStack.c

@@ -58,10 +58,17 @@ SwitchStack (
   ASSERT (EntryPoint != NULL);
   ASSERT (NewStack != NULL);
 
+  //
+  // New stack must be aligned with CPU_STACK_ALIGNMENT
+  //
+  ASSERT (((UINTN)NewStack & (CPU_STACK_ALIGNMENT - 1)) == 0);
+
   VA_START (Marker, NewStack);
 
   InternalSwitchStack (EntryPoint, Context1, Context2, NewStack, Marker);
 
+  VA_END (Marker);
+
   //
   // InternalSwitchStack () will never return
   //