qla2xxx: Recheck session state after RSCN.

qla2xxx: Recheck session state after RSCN.

Orabug: 27235104

when RSCN is delivered for specific remote port,
the switch say the remote port is still up and
current state of the remote port/session is good,
don't trust the state.  Instead use ADISC to very
the session is still valid or not.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
[ Upstream commit a07fc0a42e9ae76e93235f59b089986dc1b751c8 ]
Signed-off-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>
Reviewed-by: Jack Vogel <jack.vogel@oracle.com>