ARM: dts: msm: Add device tree changes for apq8009 target

Add DT changes for apq8009 WTP 512MB variant(v2)  with pm660 PMIC
support.

Snapshot of apq8009 device tree is taken from msm-3.18 kernel version
@ commit bf9148fbb54a75 ("ARM: dts: msm: disable internal pull up for
8909w BG")

Change-Id: I57594d1e079e72977821db3c28e8c8b83950c99d
Signed-off-by: Raja Mallik <rmallik@codeaurora.org>