FROMGIT: scsi: ufs: Minor adjustments to error handling

In error handling prepare stage, after SCSI requests are blocked, do a
down/up_write(clk_scaling_lock) to clean up the queuecommand() path.
Meanwhile, stop eeh_work in case it disturbs error recovery. Moreover,
reset ufshcd_state at the entrance of ufshcd_probe_hba(), since it may be
called multiple times during error recovery.

Link: https://lore.kernel.org/r/1614145010-36079-2-git-send-email-cang@codeaurora.org


Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Bug: 189457922
(cherry picked from commit aa53f580
git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git

 5.14/scsi-queue)
Change-Id: Ib707e7218dfcd62d361c824706c2f9e8ff30f03c
Signed-off-by: Can Guo <cang@codeaurora.org>