leds: use platform_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

diff --cc drivers/leds/leds-88pm860x.c
Simple merge

diff --cc drivers/leds/leds-sunfire.c
Simple merge

diff --cc drivers/leds/leds-wm831x-status.c
Simple merge