gpio: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --cc drivers/gpio/gpio-74x164.c
Simple merge

diff --cc drivers/gpio/gpio-adp5520.c
Simple merge

diff --cc drivers/gpio/gpio-adp5588.c
Simple merge

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

diff --cc drivers/gpio/gpio-da9052.c
Simple merge

diff --cc drivers/gpio/gpio-da9055.c
Simple merge

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

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

diff --cc drivers/gpio/gpio-janz-ttl.c
Simple merge

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

diff --cc drivers/gpio/gpio-max730x.c
Simple merge

diff --cc drivers/gpio/gpio-max732x.c
Simple merge

diff --cc drivers/gpio/gpio-mc33880.c
Simple merge

diff --cc drivers/gpio/gpio-mcp23s08.c
Simple merge

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

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

diff --cc drivers/gpio/gpio-pca953x.c
Simple merge

diff --cc drivers/gpio/gpio-pcf857x.c
Simple merge

diff --cc drivers/gpio/gpio-pl061.c
Simple merge

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

diff --cc drivers/gpio/gpio-rdc321x.c
Simple merge

diff --cc drivers/gpio/gpio-sta2x11.c
Simple merge

diff --cc drivers/gpio/gpio-sx150x.c
Simple merge

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

diff --cc drivers/gpio/gpio-tps65912.c
Simple merge

diff --cc drivers/gpio/gpio-ts5500.c
Simple merge

diff --cc drivers/gpio/gpio-twl4030.c
Simple merge

diff --cc drivers/gpio/gpio-ucb1400.c
Simple merge

diff --cc drivers/gpio/gpio-wm831x.c
Simple merge

diff --cc drivers/gpio/gpio-wm8350.c
Simple merge

diff --cc drivers/gpio/gpio-wm8994.c
Simple merge