arm/dt: msm8226: switch to rpm controlled regulator support

Switch control of most PMIC PM8226 regulators from
direct native control via qpnp-regulator to indirect RPM control
via rpm-regulator-smd for MSM8226.

Add a pm8226_l3_corner device node for the clock-8226.

Modify the voltage ranges for PM8226 SMPS 1 and LDO 3.  The
ranges when using qpnp-regulator control were:

SMPS1 - 1150000 to 1150000 uV
LDO3 - 1150000 to 1150000 uV

Change these ranges to:

SMPS1 - 500000 to 1275000 uV
LDO3 - 750000 to 1275000 uV

When using RPM control, it is safe to allow requests all the way
down to retention voltage levels. The maximum voltage level is
a correction based on input from system team.

Change-Id: Iff22f9a53d02288a07b18909efb80b07c1dbe0d5
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
3 files changed