pm_runtime_enable will increase power disable depth. Thus a
pairing decrement is needed on the error handling path to keep
it balanced.

Fixes:27a49ed1(gpio: arizona: Add support for GPIOs that)
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Liang <zhengliang6@huawei.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>