Currently, the only way we support passing a bloblist from one stage to
the next is via the BLOBLIST_FIXED mechanism. Update the Kconfig logic
to express this constraint.
Reviewed-by: Raymond Mao <raymondmaoca@gmail.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Tom Rini <trini@konsulko.com>