ENGR00170523 imx6q-ard: add egalax touchscreen support

* Add egalax touch screen support for sabreauto platform
* Add egalax client to correct i2c channel
* Fix GPIO assigned to touch screen interrupt
* egalax driver depends of LED_CLASS for gpio interrupt handling
  and HIDRAW for X11 event notification and added to mx6q_defconfig

Signed-off-by: Adrian Alonso <aalonso@freescale.com>
2 files changed