I2C bus configuration is generally set up in devicetree.cb. This change
establishes listings for the buses so that they can be used (though
followup changes should update the buses to have correct timings).
BUG=b:72121803
Change-Id: I2b12c82d2bab42ab470aa207880be8876e7cb75f
Signed-off-by: Justin TerAvest <teravest@chromium.org>
Reviewed-on: https://review.coreboot.org/23407
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
9a045cf203