regulator: qcom-rpmh: add PM6150/PM6150L regulator support

Add support for PM6150/PM6150L regulators. This ensures
that consumers are able to modify the physical state of PMIC
regulators.

Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
Link: https://lore.kernel.org/r/1570183734-30706-3-git-send-email-kgunda@codeaurora.org


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