scsi: ufs: retry failed query flag requests

UFS flag query requests may fail sometimes due to timeouts etc.  Add a
wrapper function to retry up to 10 times in case of such failure,
similar to retries being made for attribute queries.

Reviewed-by: Dolev Raviv <draviv@codeaurora.org>
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>