google/chell: remove non-existent touchscreen

Chell doesn't have a touchscreen, so remove the driver
definition from devicetree.  Leave the PCI device function 0
enabled since disabling results in the touchpad (function 1)
being disabled as well.

Change-Id: I32619b7618bc0cdd99fa54fdda9bf2b5c1bb79a4
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/20498
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
1 file changed