UPSTREAM: scsi: ufs: ufs-pci: Fix Intel LKF link stability

Intel LKF can experience link errors. Make fixes to increase link
stability, especially when switching to high speed modes.

Link: https://lore.kernel.org/r/20210831145317.26306-1-adrian.hunter@intel.com


Fixes: b2c57925 ("scsi: ufs: ufs-pci: Add support for Intel LKF")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 1cbc9ad3)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I9df0fde35fd0c91abb182df3a4caa9922d679ca5