ARM: 5973/1: ux500: add gpio support

Add support for the GPIOs on the U8500, using the plat-nomadik GPIO
driver.

Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c5408bf..540f859 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -756,6 +756,7 @@
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
 	select COMMON_CLKDEV
+	select ARCH_REQUIRE_GPIOLIB
 	help
 	  Support for ST-Ericsson's Ux500 architecture