pinctrl: qcom: Add MDM9607 pinctrl driver

Add a pinctrl driver to allow for managing SoC pins.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210624191743.617073-2-konrad.dybcio@somainline.org


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