[MIPS] Transform old-style macros to newer "__noreturn"

Convert old/obsolete NORET_TYPE and ATTRIB_NORET macros to use the
newer standard of "__noreturn" as defined in compiler-gcc.h.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/sibyte/cfe/setup.c b/arch/mips/sibyte/cfe/setup.c
index ae4a92c..51898dd 100644
--- a/arch/mips/sibyte/cfe/setup.c
+++ b/arch/mips/sibyte/cfe/setup.c
@@ -62,7 +62,7 @@
 extern int kgdb_port;
 #endif
 
-static void ATTRIB_NORET cfe_linux_exit(void *arg)
+static void __noreturn cfe_linux_exit(void *arg)
 {
 	int warm = *(int *)arg;
 
@@ -83,14 +83,14 @@
 	while (1);
 }
 
-static void ATTRIB_NORET cfe_linux_restart(char *command)
+static void __noreturn cfe_linux_restart(char *command)
 {
 	static const int zero;
 
 	cfe_linux_exit((void *)&zero);
 }
 
-static void ATTRIB_NORET cfe_linux_halt(void)
+static void __noreturn cfe_linux_halt(void)
 {
 	static const int one = 1;