mn10300: switch to generic old sigsuspend

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index cb50220..f157035 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -11,6 +11,7 @@
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
 	select GENERIC_SIGALTSTACK
+	select OLD_SIGSUSPEND3
 
 config AM33_2
 	def_bool n