fnic: Fix to cleanup aborted IO to avoid device being offlined by mid-layer

fnic: Fix to cleanup aborted IO to avoid device being offlined by mid-layer

From: Satish Kharat <satishkh@cisco.com>

If an I/O times out and an abort issued by host, if the abort is
successful we need to set scsi status as DID_ABORT. Or else the
mid-layer error handler which looks for this error code, will
offline the device. Also if the original I/O is not found in fnic
firmware, we will consider the abort as successful.
Fnic driver version changed from 1.6.0.17a to 1.6.0.19,
version 1.6.0.18 has been skipped

Signed-off-by: Satish Kharat <satishkh@cisco.com>
Orabug: 22918200
Signed-off-by: Jason Luo <zhangqing.luo@oracle.com>