ARM: dts: msm: switch regulators to RPM control for msm8909

Switch qpnp-regulator devices to rpm-smd-regulator devices for msm8909.
This make sure the requests for these regulators are sent to RPM
processor for handling.

Change-Id: Icf43256a407267951615c163c881ea6430e943b2
Signed-off-by: Tirupathi Reddy <tirupath@codeaurora.org>