On flapjack, retrieve the board information via CBI interface.
Also reserving 0x2 sku_id for the case of un-provisioned board as this is the id
used prior to the readiness of cbi.
BUG=b:123676982
BRANCH=kukui
TEST=provisioned cbi info and verify the sku_id.
Signed-off-by: YH Lin <yueherngl@google.com>
Change-Id: Iad7a52df38e2045abbdded8ba0a1f1544de961fc
Reviewed-on: https://review.coreboot.org/c/31586
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
967edec254