mb/google/octopus: Create Lick variant

mb/google/octopus: Create Lick variant

Create new variant for Lick that is copied from phaser variant.
Remove unnecessary code, due to not support touchscreen and stylus.
Set to default_override_table.
Remove variant.c.

BUG=b:145181137
BRANCH=octopus
TEST=./util/abuild/abuild -p none -t google/octopus -x -a

Change-Id: If732d94194defb9f5ee9c847ee93dd58aef01174
Signed-off-by: Hash.Hung <hash1.hung@lcfc.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37247
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Henry Sun <henrysun@google.com>
Reviewed-by: Marco Chen <marcochen@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>