tile: switch to generic compat rt_sig{procmask,pending}()

note that the only systems that are going to care are big-endian
64bit ones with 32bit compat enabled - little-endian bitmaps
are not sensitive to granularity.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/tile/Kconfig

@@ -22,6 +22,8 @@ config TILE
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
 	select GENERIC_SIGALTSTACK
+	select GENERIC_COMPAT_RT_SIGPROCMASK
+	select GENERIC_COMPAT_RT_SIGPENDING
 
 # FIXME: investigate whether we need/want these options.
 #	select HAVE_IOREMAP_PROT

include/uapi/asm-generic/unistd.h

@@ -402,9 +402,9 @@ __SC_COMP(__NR_rt_sigsuspend, sys_rt_sigsuspend, compat_sys_rt_sigsuspend)
 #define __NR_rt_sigaction 134
 __SC_COMP(__NR_rt_sigaction, sys_rt_sigaction, compat_sys_rt_sigaction)
 #define __NR_rt_sigprocmask 135
-__SYSCALL(__NR_rt_sigprocmask, sys_rt_sigprocmask)
+__SC_COMP(__NR_rt_sigprocmask, sys_rt_sigprocmask, compat_sys_rt_sigprocmask)
 #define __NR_rt_sigpending 136
-__SYSCALL(__NR_rt_sigpending, sys_rt_sigpending)
+__SC_COMP(__NR_rt_sigpending, sys_rt_sigpending, compat_sys_rt_sigpending)
 #define __NR_rt_sigtimedwait 137
 __SC_COMP(__NR_rt_sigtimedwait, sys_rt_sigtimedwait, \
 	  compat_sys_rt_sigtimedwait)