input: touch: synaptics: Reset the device when blanking display

This should be backed out as soon as fixed firmware becomes available!

Something is iffy with the controller that gets triggered under
certain environmental conditions and makes it hang or register ghost
touches for a few minutes. Instead of waiting for it to fix itself,
have the controller forcefully reset whenever the panel is cycled so
a manual recovery is possible.

This is not a fix or a workaround, just a recovery mechanism :(

Change-Id: I39a3ab99b9c5701eed047d125ffa12ea459ebae9
Merge "input: touch: synaptics: Reset the device when blanking display" into kk4.4