ARM: dts: msm: correct sensor pin number for msm8909

Correct pin number used by sensors according to newest schematic.
And move MTP and SKUA sensors device tree to corresponding dtsi to
prevent potential conflict.

Change-Id: I519f10c5c9a6e0ccb8a8342039ef3100cb9accad
Signed-off-by: Bingzhe Cai <bingzhec@codeaurora.org>