sb/intel/i82801dx: Get rid of device_t

Use of device_t has been abandoned in ramstage.

Change-Id: I36f064b67f14556e38b41b7f64c3e27d8d935367
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26255
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
3 files changed