ARM: dts: msm: Add pm support for msm8937

Add support for SPM, LPM and RPM stats drivers and
removed unused nodes. This implementation is based
on snapshot of the msm8937-pm device tree from msm-3.18
commit 96e7a9126e4ff ("Poll for the PMIC_STATE after
updating the VCTL register").

Change-Id: Id26453d377919cecd68f316192a1a370fd449660
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
2 files changed