linux-phytec-fsl

gpio: tps65218: use devm_gpiochip_add_data() for gpio registration

Use devm_gpiochip_add_data() for GPIO registration and remove the need
of driver callback .remove.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>