frv: switch to generic old sigsuspend

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 8aaf1a1..683ab5c 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -13,6 +13,7 @@
 	select GENERIC_CPU_DEVICES
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select GENERIC_SIGALTSTACK
+	select OLD_SIGSUSPEND3
 
 config ZONE_DMA
 	bool