xsigo: Compute node crash on FC failover

xsigo: Compute node crash on FC failover

Orabug: 25981973

xsvhba's internally generated scsi command timeout code prematurely completes
a command rather than relying on qlogic to complete with "CMD_TIMEOUT" code.
Actual command completes just after xsigo timeout completion and
causes the freed buffer to be overwritten with inquiry data.
These code changes will allow scsi mid layer to do the recovery.
The original xsigo timeout code is not there in ESX xsvhba source code and was
mistakenly brought over in uek.

Reviewed-by: sajid.zia@oracle.com
Signed-off-by: Pradeep Gopanapalli <pradeep.gopanapalli@oracle.com>
Signed-off-by: said.zia@oracle.com