mainboard/{google,intel}: Change config option selection

Change config option selection from "config xyz default y" to "select
xyz" if the config option has no dependencies.

BUG=None
BRANCH=None
TEST=Verified that config option selection remains unchanged.

Change-Id: I259ae40623b7f4d5589e2caa0988419ba4fefda4
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/18400
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
8 files changed