[SCSI] qla2xxx: Move loopback mode reset after chip reset check.

If we need to do a chip reset because of a serious loopback error don't try to
reset the loopback mode on the port as the mailbox command will timeout.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>