[MIPS] Wire up ioprio_set and ioprio_get.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 142c9b7..7e74b41 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -519,4 +519,6 @@
 	PTR	compat_sys_kexec_load
 	PTR	sys_getcpu
 	PTR	compat_sys_epoll_pwait
+	PTR	sys_ioprio_set
+	PTR	sys_ioprio_get			/* 4315 */
 	.size	sys_call_table,.-sys_call_table