scsi: ufs-qcom: disable both host and device LCC

UniPro v1.6 specication requires both host and device TX LCC Enable to be
in same state but current driver still attempts to disable just one
side of LCC. With this change, if Host supports UniPro v1.6 (and all
commercial UFS devices anyway supports the UniPro v1.6), we would keep
both host and device TX LCC disabled after the link startup. Keeping LCC
disabled helps avoid multiple compatibility issues between host and device.

Change-Id: I1697089255b63f70a465c8b42a899ee6ab0acd88
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>