CRIS: enable GPIOLIB

Enable GPIOLIB on CRIS so that we can use the generic GPIO APIs.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 4a03911..319660e 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -52,6 +52,7 @@
 	select CLONE_BACKWARDS2
 	select OLD_SIGSUSPEND
 	select OLD_SIGACTION
+	select ARCH_REQUIRE_GPIOLIB
 
 config HZ
 	int