ARM: dts: imx6q-logicpd: Enable ili2117a Touchscreen

The LCD used with the imx6q-logicpd board has an integrated
ili2117a touch controller connected to i2c1.

This patch adds the node to enable this feature.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>