qed: Change metadata needed for SPQ entries

Each configuration element send via ramrod requires a Slow Path Queue
entry. This slightly changes the way such an entry is configured, but
contains mostly semantic changes [where more parameters are gathered
in a sub-struct instead of being directly passed].

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>