ARM: dts: msm: Modify L3 and S2 regulator voltages to support msm8926

Update the maximum voltage constraints for PM8226 LDO 3 and
SMPS 2 in order to support the higher voltages needed when
SMPS 2 is running in MV voltage range.  Also update the CPR
regulator data to match MSM8926 PVS voltage mapping and 10 mV
step size.

Change-Id: I84e2a5290c948e04c0ff7b054e505197d0492ca7
Signed-off-by: David Collins <collinsd@codeaurora.org>