xsigo: UEK4-master:poor performance discovering 256 FC LUNs w/4 paths per LUN

xsigo: UEK4-master:poor performance discovering 256 FC LUNs w/4 paths per LUN

Orabug: 26199177

Current sense_len checks for size of cp->sense_buffer which is of type
pointer. Passing truncated sense data(size of pointer) to upper scsi
layers(aula) is causing delay in discovering FC LUN's.
Fixed sense_len assignment to SCSI_SENSE_BUFFERSIZE, this resolved
delay in discovering FC LUN's.

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