Revert "ARM: shmobile: Disallow PINCTRL without GPIOLIB"

GPIOLIB dependency handling was added to the PINCTRL core by

commit 2afe8229
Author: Haojian Zhuang <haojian.zhuang@linaro.org>
Date:   Thu Mar 28 07:34:19 2013 +0800

    pinctrl: core: add dependence of GPIOLIB

There is not need to handle that dependency at the SH Mobile level
anymore. Revert

commit 6722f6cb
Author: Magnus Damm <damm@opensource.se>
Date:   Mon Mar 18 22:58:18 2013 +0900

    ARM: shmobile: Disallow PINCTRL without GPIOLIB

    Modify mach-shmobile to only select PINCTRL in case of
    ARCH_WANT_OPTIONAL_GPIOLIB is set.

    This fixes a build error triggered when adding a new SoC
    lacking GPIO software support (ARCH_WANT_OPTIONAL_GPIOLIB=n):
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/Kconfig

@@ -645,7 +645,7 @@ config ARCH_SHMOBILE
 	select MULTI_IRQ_HANDLER
 	select NEED_MACH_MEMORY_H
 	select NO_IOPORT
-	select PINCTRL if ARCH_WANT_OPTIONAL_GPIOLIB
+	select PINCTRL
 	select PM_GENERIC_DOMAINS if PM
 	select SPARSE_IRQ
 	help