[MIPS] Reserve syscall numbers for kexec_load.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 61362e6..720fac3 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -652,7 +652,8 @@
 	sys	sys_vmsplice		4
 	sys	sys_move_pages		6
 	sys	sys_set_robust_list	2
-	sys	sys_get_robust_list	3
+	sys	sys_get_robust_list	3	/* 4310 */
+	sys	sys_ni_syscall		0
 	.endm
 
 	/* We pre-compute the number of _instruction_ bytes needed to