ARM: dts: msm: reorganize pmd9635 board specific settings

There are some board specific configurations in msm-pdm9635.dtsi. Move
these configurations into appropriate board level device tree files so
that msm-pmd9635.dtsi captures only board-independent PMIC PMD9635
configurations.

Change-Id: I0fe21661e1558fa3e416d5816679b1946b6160d1
Signed-off-by: Ke Liu <keliu@codeaurora.org>