MIPS: Wire up new pkey_{mprotect,alloc,free} syscalls

Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14380/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index c8e43e0..c29d397 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -597,3 +597,6 @@
 	PTR	sys_copy_file_range		/* 4360 */
 	PTR	sys_preadv2
 	PTR	sys_pwritev2
+	PTR	sys_pkey_mprotect
+	PTR	sys_pkey_alloc
+	PTR	sys_pkey_free			/* 4365 */