broadcom/cygnus: returning from verstage without having one is useless

Change-Id: I488b74b73a7654e97958a80fa7c83258fea3e959
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: http://review.coreboot.org/11103
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/soc/broadcom/cygnus/Kconfig

@@ -29,6 +29,7 @@ config SOC_BROADCOM_CYGNUS
 	select HAVE_MONOTONIC_TIMER
 	select HAVE_UART_SPECIAL
 	select HAS_PRECBMEM_TIMESTAMP_REGION
+	select SEPARATE_VERSTAGE
 	select RETURN_FROM_VERSTAGE
 	select GENERIC_GPIO_LIB