[MIPS] Wire splice syscall.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 98bf25d..f7c4e75 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -460,3 +460,4 @@
 	PTR	sys_pselect6			/* 5260 */
 	PTR	sys_ppoll
 	PTR	sys_unshare
+	PTR	sys_splice