msm: Add spm-regulator driver

Add a new regulator driver named spm-regulator which can control
FTS2 type QPNP PMIC regulators via the SPM module.  Provide
support for both possible FTS2 voltage ranges.

Change-Id: Ibba2ac5ce97f4fdcf28b9077cb4d8ef3f5c65531
Signed-off-by: David Collins <collinsd@codeaurora.org>
5 files changed