mips: switch to generic compat rt_sigaction()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 6623077..aa29c33 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -386,7 +386,7 @@
 	PTR	sys_getresgid
 	PTR	sys_prctl
 	PTR	sys32_rt_sigreturn
-	PTR	sys_32_rt_sigaction
+	PTR	compat_sys_rt_sigaction
 	PTR	compat_sys_rt_sigprocmask 	/* 4195 */
 	PTR	compat_sys_rt_sigpending
 	PTR	compat_sys_rt_sigtimedwait