Merge pull request #678 from soby-mathew/sm/PSCI_AArch32

Introduce AArch32 support for PSCI library

lib/locks/exclusive/spinlock.S

 /*
- * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -28,25 +28,6 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <asm_macros.S>
-
-	.globl	spin_lock
-	.globl	spin_unlock
-
-
-func spin_lock
-	mov	w2, #1
-	sevl
-l1:	wfe
-l2:	ldaxr	w1, [x0]
-	cbnz	w1, l1
-	stxr	w1, w2, [x0]
-	cbnz	w1, l2
-	ret
-endfunc spin_lock
-
-
-func spin_unlock
-	stlr	wzr, [x0]
-	ret
-endfunc spin_unlock
+#if !ERROR_DEPRECATED
+#include "./aarch64/spinlock.S"
+#endif