x86: switch to generic compat rt_sigaction()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl
index 6ceaa63..38ae65d 100644
--- a/arch/x86/syscalls/syscall_64.tbl
+++ b/arch/x86/syscalls/syscall_64.tbl
@@ -325,7 +325,7 @@
 # x32-specific system call numbers start at 512 to avoid cache impact
 # for native 64-bit operation.
 #
-512	x32	rt_sigaction		sys32_rt_sigaction
+512	x32	rt_sigaction		compat_sys_rt_sigaction
 513	x32	rt_sigreturn		stub_x32_rt_sigreturn
 514	x32	ioctl			compat_sys_ioctl
 515	x32	readv			compat_sys_readv