mb/google/brya: Add variant_init and variant_finalize callbacks
Some brya variants may need to initialize and finalize some
variant-specific devices during ramstage, therefore add the
commonly-used hooks and callbacks to support this.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Iede6dc5a5b9a7385fedd59d4eeaaba118eff0e20
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62382
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>