[PARISC] Add TIF_RESTORE_SIGMASK support

And unmask the pselect6/ppoll system calls.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index 3fb37cf..7c1bb8b 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -955,6 +955,8 @@
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
+#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
 
 #endif /* __ASSEMBLY__ */