pinctrl: qcom: spmi-gpio: Add pm8226 compatibility

Add support for pm8226 SPMI GPIOs. The PMIC features
8 GPIOs, with no holes inbetween.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Suggested-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Signed-off-by: Dominik Kobinski <dominikkobinski314@gmail.com>
Link: https://lore.kernel.org/r/20211125215310.62371-1-dominikkobinski314@gmail.com


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>