[SCSI] qla2xxx: Correct fc_host port_state display.

[jejb: checkpatch fixes]
Add more fine grain parsing of vha->loop_state to export a more accurate
fc_host port_state.

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