ARM: dts: msm: switch to RPM control for most regulators on msmsamarium

Convert most of the PMA8084 qpnp-regulator devices to
rpm-regulator-smd devices.  This ensures that requests made for
these regulators are aggregated by the RPM processor along with
the requests from other processors.

PMA8084 regulators SMPS 8, 9, 10, and 11 should not be converted
to rpm-regulator-smd devices because the RPM processor does not
provide support for these regulators.  These regulators power the
four application processor cores.

Lower the value specified for regulator-min-microvolt for
regulators S1 (VDD_MX) and S2 (VDD_CX) since the RPM is capable
of enforcing system-wide constraints on their final output
voltages.

Raise the value specified for regulator-max-microvolt for
regulators S1 and S2 so that they match hardware requirements.

Change-Id: I6ca15ce73c7cb7329c690b33be1ad104e09e0e93
Signed-off-by: David Collins <collinsd@codeaurora.org>