scsi: ufs: find out sense data over scsi status values

Unlike 'GOOD' and 'CHECK CONDITION', other status values in
Response UPIU may or may not contain sense data. That is returning
sense data isn't obvious. So, in this case the Data Segment Length
field should be checked. If a non-zero value, it means that UPIU
has Sense Data in the Data Segment area.

Change-Id: I51b15b9a7b17bfb8dcc9f0013f65b493f4111852
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Patch-mainline: linux-scsi@vger.kernel.org @ 2013/08/26, 14:40
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>