m68k: Switch to saner sigsuspend()

and saner do_signal() arguments, while we are at it

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index b43b36b..b95acb9 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -373,6 +373,9 @@
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
+#ifndef __uClinux__
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
+#endif
 
 /*
  * "Conditional" syscalls