mb/google/*: Remove selection of DRIVERS_PS2_KEYBOARD

Until now, chromeec was doing keyboard initialization for the boards
that have DRIVERS_PS2_KEYBOARD selected. However, coreboot does not
leave the keyboard controller in a default reset state. This could
result in payloads or OS failing to probe the controller as there
could be stale data buffered in the controller during the handoff.

Since the boards using chromeec already perform keyboard
initialization in payload, there is no need to initialize the keyboard
in coreboot too. This change gets rid of DRIVERS_PS2_KEYBOARD
selection from all google mainboards using chromeec.

TEST=Keyboard works fine after booting to OS even if user hits keys
during BIOS to OS handoff.

Change-Id: I1f49b060eb005c0f2b86f9d68d6758954eeb3cf0
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/27291
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
5 files changed