google/*: Clean up Kconfig board selection for non-MTK Google Arm boards

This patch unifies and simplifies the Kconfig selection model for the
Gru, Herobrine, Trogdor and Veyron boards according to the model
discussed in CB:78972.

Also add missing license headers to two Kconfig files while I'm here.

Change-Id: If679a05afd10869afba9c2a33b54862e102b5f40
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79022
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions