skyrim/overridetree.cb: Remove gpio_keys ACPI node
Only Frostflow supports the stylus, so remove the gpio-keys ACPI node
from Skyrim.
The Kconfig value DRIVERS_GENERIC_GPIO_KEYS is still enabled for all
Skyrim variants, since coreboot will drop the driver from the BIOS image
if there are no references to it (in the devicetree). If some other
design ends up using the stylus in the future we won't have to bring it
back.
BUG: none
TEST: build_packages --board=skyrim chromeos-bootimage --autosetgov
Change-Id: I9ffe215741b72b678d74405769f35167d8ded4b5
Signed-off-by: Tim Van Patten <timvp@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73299
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>