gpio: vf610: connect GPIO label to dev name

gpio: vf610: connect GPIO label to dev name

[ Upstream commit f661ec6df1553dd75e90aafc27e24238b61477d6 ]

Current GPIO label is fixed, so can't distinguish different GPIO
controllers through labels. Use dev name instead.

Fixes: c899f771b9e8 ("gpio: vf610: add gpiolib/IRQ chip driver for Vybrid")
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>