ARM: dts: msm8226: Add qrd pvt device tree

QRD PVT device will use different pmic version
which have different hardware design that has to
be distinguished with original DVT and EVT.

Change-Id: I770e4bd9e77ac4257762dd7b06b5d8ad334efcfa
Signed-off-by: Maria Yu <aiquny@codeaurora.org>