Input: touchscreen: atmel_mxt_ts

vdd and avdd voltage level hasn't confirmed
vdd and avdd regulator number hasn't confirmed

Changes
	- Add i2c pull-up regulator setup
	- Add vdd avdd regulator setup

mahc-msm: board-8960

Changes
	- Sync atmel i2c address with deivcetree

devicetree: binding

Changes
	- Remove hard code configuration file