ARM: dts: msm: Add RPM stats support for qcs405

Add RPM master stats and RPM stats support for qcs405.
RPM maintains a counter of the masters i.e APPS, MPPS etc
number of times the SoC entered a deeper sleep mode involving
lowering or powering down the backbone rails - Cx and Mx and
the oscillator clock, XO.

Change-Id: If3fce762010a080b9f87dc8e24be924863842ce8
Signed-off-by: Raghavendra Kakarla <rkakarla@codeaurora.org>