UPSTREAM: scsi: ufs: Abort gating if clock on request is pending

This change attempts to abort gating of clocks if a request to turn-on
clocks is pending.  This would in turn avoid turning OFF and back ON the
clocks.

Link: https://lore.kernel.org/r/1573798172-20534-7-git-send-email-cang@codeaurora.org


Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Bug: 143632303
Change-Id: Idff21e3cd8f2e51554a1ab1f133733bc573d5597
(cherry picked from commit 18f01374b55b4595ad7f56250891bdbdb9d7a052)
Signed-off-by: Can Guo <cang@codeaurora.org>