ARM: dts: msm: Add touch volume-up key and green led for QRD msmtitanium

Msmtitanium QRD volume up gpio key is connected to GPIO 85.
Add definition for GPIO 85.
Add Synaptics touch controller device node for QRD msmtitanium.
Touch controller is connected to the host processor via I2C.
Add device tree node for green connected to MPP2 for msmtitanium
QRD platform.

Change-Id: I385997bd5a54449c75550a091417d1b696805d80
Signed-off-by: Chunmei Cai <ccai@codeaurora.org>