scsi: fnic: Avoid looping in TRANS ETH on unload

scsi: fnic: Avoid looping in TRANS ETH on unload

Avoid looping in fnic_scsi_abort_io() before sending fw reset when fnic is
in TRANS ETH state and when we have not received any link events.

Link: https://lore.kernel.org/r/20201121012145.18522-1-kartilak@cisco.com
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Co-developed-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>