FROMLIST: scsi: ufs: add missing host_lock in setup_xfer_req

This patch adds a host_lock which existed before on ufshcd_vops_setup_xfer_req.

Bug: 190637035
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Link: https://lore.kernel.org/linux-scsi/20210701005117.3846179-1-jaegeuk@kernel.org/T/#u


Fixes: 7613068f ("BACKPORT: FROMGIT: scsi: ufs: Optimize host lock on transfer requests send/compl paths")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: I0e5f9ec11fa62a074bca5feb5638e8d04cf858ee