* include kscan.yaml so we can set kscan-composite as a wakeup source
* modify enable and disable callback to check for wakeup capabilities of
composite and children
* disable children wakeup source
The disable function is only called
when the composite is not an enabled wakeup source.
In that case the children should also not be an enabled
wakeup source, so they can get suspended
Renamed the composite kscan's column-offset property to col-offset for
consistency with other properties such as matrix transform's col-offset
and matrix kscan's col-gpios.
svek1
Joel Spadin
Peter Johanson