regulator: qcom-rpmh: add support for pmm8654au regulators

Add the RPMH regulators exposed by the PMM8654au PMIC and its variants.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230406192811.460888-3-brgl@bgdev.pl


Signed-off-by: Mark Brown <broonie@kernel.org>