Clean up Kconfig file in order to support variants for fizz. Add
BOARD_GOOGLE_BASEBOARD_FIZZ that can be set by various fizz variants
to use the common baseboard configs.
BUG=b:117066935
BRANCH=Fizz
TEST=emerge-fizz coreboot
Change-Id: I9c89f1dc526a9d623e1ae4d4b52a923489b389d3
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/28959
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
9baff96e0e