Merge commit 'gpio-lw/devel' into spear-for-3.8

This merges dependency branch gpio-lw/devel for SPEAr DT updates.

diff --cc arch/arm/Kconfig
Simple merge

diff --cc drivers/gpio/Kconfig
Simple merge

diff --cc drivers/gpio/gpio-mvebu.c
Simple merge

diff --cc drivers/gpio/gpio-omap.c
Simple merge

diff --cc drivers/gpio/gpiolib.c
Simple merge

diff --cc include/asm-generic/gpio.h
Simple merge