pinctrl: qcom: add sdm670 pinctrl

The Snapdragon 670 has a Top-Level Mode Multiplexer (TLMM) for various
features. Add a driver to support it.

Link: https://android.googlesource.com/kernel/msm/+/de5a12173c7fa6d65bedee9ad36af55b2dbfeb36%5E%21/#F6
Link: https://android.googlesource.com/kernel/msm/+/04f083156d9b9f3bfcf204c1c6da88632fbb3863%5E%21/#F22
Link: https://android.googlesource.com/kernel/msm/+/54837652e3400ecc63ccc78b2193faf4f349a32e%5E%21/#F0
Link: https://android.googlesource.com/kernel/msm/+/f0409b07174ceca217f8b7fd255418feff06092d%5E%21/#F0


Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221014001934.4995-4-mailingradian@gmail.com


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