x86, xsave: Add __init attribute to setup_xstate_features()

This is called only from initialization code.
Signed-off-by: Robert Richter <robert.richter@amd.com>
LKML-Reference: <1279731838-1522-6-git-send-email-robert.richter@amd.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

arch/x86/kernel/xsave.c

@@ -370,7 +370,7 @@ static inline void xstate_enable(u64 mask)
  * Record the offsets and sizes of different state managed by the xsave
  * memory layout.
  */
-static void setup_xstate_features(void)
+static void __init setup_xstate_features(void)
 {
 	int eax, ebx, ecx, edx, leaf = 0x2;