Merge changes Ie728cefb,I5c454ae7,If85d9c14,I440840e9,I2ab4d4ea into msm-3.4

* changes:
  board: 8974: Add support for virtual keys
  defconfig: msm8974: enable atmel touchscreen
  board: 8974-gpio: Add support for Atmel 336s controller
  arm/dt: msm8974: Add device for atmel_mxt_ts touchscreen
  msm: 8974: set up and enable i2c-2 qup bus