[SCSI] qla2xxx: Perform FCoE context reset before trying adapter reset for ISP82xx.

For certain failures, try to recover first by doing FCoE context reset before
attempting big hammer approach(adpater reset).

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>