nb/intel/pineview: Get rid of device_t

Use of `device_t` has been abandoned in ramstage.

Change-Id: Icec2e5f722c1f15493e5861b47f64698250f5813
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/23673
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2 files changed