mb/google/brox: Move storage devices to overridetree

These are specific to the brox board, so moving devices to the brox
variant.

BUG=b:311450057,b:300690448,b:319058143
BRANCH=None
TEST=emerge-brox coreboot chromeos-bootimage
     will check if this helps detect the storage device in the factory

Change-Id: I18d096040c293abfd4cd0b1bb5f50ba6dcc2e183
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79995
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>

0 files changed, 0 insertions, 0 deletions