scsi: ufs: mediatek: TX skew fix

Fix Mediatek TX skew issue by checking dts setting and vendor/model. Then
set PA_TACTIVATE to 8.

Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Acked-by: Chun-Hung Wu <Chun-Hung.Wu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20240315083448.7185-3-peter.wang@mediatek.com


Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>