scsi: ibmvfc: Do not call fc_block_scsi_eh() on host reset

When we're resetting the host any remote port states will be reset
anyway, so it's pointless to wait for dev_loss_tmo during host reset.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>