Add 7" evervision PCAP touch driver

Signed-off-by: Jeff Horn <jhorn@reachtech.com>
Disable touch nodes in dtsi

This sets the touch nodes to disabled so each
board dts can enable the correct touch.

Signed-off-by: Jeff Horn <jhorn@reachtech.com>
Fix dt path for dipswitch

Signed-off-by: Jeff Horn <jhorn@reachtech.com>