regulator: qcom_pm8008: Add snapshot of PM8008 regulator driver

This is a snapshot of the regulator PM8008 driver as of msm-4.14
'commit 1e5b61175fef (Merge "ARM: dts: msm: Add tpdm lpass for
sdmmagpie")'.

Change-Id: Ie8d96b50558b8dd3084134216dff6393bac16f71
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Signed-off-by: Umang Agrawal <uagrawal@codeaurora.org>