Sweep2Sleep: Added right to left trigger, + cleanups, Ver 1.6

Now we can use driver to sweep from left to right or backwards
to turn screen off.

Added also info for other devs that want to add this.
need to culculate values depend on screen size.
now it's for 1920x1080

Conflicts:
	drivers/input/touchscreen/sweep2wake.c
Add my n5 makefile flags
vfp: Use hardfloat