MLK-12849 ARM: dts: imx6ull-ddr3-arm2: add a new dts file for TSC

MLK-12849 ARM: dts: imx6ull-ddr3-arm2: add a new dts file for TSC

Since TSC has pin conflict with I2C1 which is used by PMIC and Camera,
we need to move TSC setting from LCDIF dts file into a separated one to
achieve the LCDIF and Camera feature in one DTS file. After the change,
we can get the supported features as follows.

-lcdif.dtb: lcd and camera, but no tsc
-tsc.dtb:   lcd and tsc, but no camera

Signed-off-by: Robby Cai <robby.cai@nxp.com>
Signed-off-by: Arulpandiyan Vadivel <arulpandiyan_vadivel@mentor.com>
Signed-off-by: Srikanth Krishnakar <Srikanth_Krishnakar@mentor.com>