adding s2w, credits: show-p1984, maxwen, nik3r, neocortex

This adds swipe2wake functionality to touchscreen/gpio driver.
User can use capactivie buttons swipe to wake/sleep phone.
Original implementation by show-p1984, current impl by mik3r
and maxwen. Single patch commit from neocortex' github kernel tree.
https://github.com/n3ocort3x/endeavoru_3.14/commit/c170ec2a54aaa58d06fae0c7567f454b21f46108

Change-Id: Ifebac403dbcda306395d753f320cfad0e0728e78