ARM: dts: msm: Enable 1080p panel for supported 8226 boards

msm8226 boards that support 1080p display have Synaptics S3408
touchscreen as primary panel.  Enable this panel on these boards.

Change-Id: I983d487c76bfb58d324cef89d018b3656354c04d
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>