Mark __die() "noreturn" for real.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 9419a35..b502dc97 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -254,8 +254,9 @@
 
 static DEFINE_SPINLOCK(die_lock);
 
-NORET_TYPE void __die(const char * str, struct pt_regs * regs,
-	const char * file, const char * func, unsigned long line)
+NORET_TYPE void ATTRIB_NORET __die(const char * str, struct pt_regs * regs,
+				   const char * file, const char * func,
+				   unsigned long line)
 {
 	static int die_counter;