mainboard/google/puff: Clean up Kconfig

Let the linker trim unused net driver symbols when unused
in devicetree rather than being overly zealous in the Kconfig.

BUG=b:146592075,146999042,146999043
BRANCH=none
TEST=Boot to kernel.
     Ensure we have ip address and corresponding mac
     address with ifconfig.
     Ensure ethernet controller shows up with lspci.

Change-Id: Ie98d0f9f9b77cb9ee4e52f6c95b68bcbdd94f2cc
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38098
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Daniel Kurtz <djkurtz@google.com>

0 files changed, 0 insertions, 0 deletions