scsi: ufs: ufs-qcom: Add support for limiting HS gear and rate

Add support to limit Tx/Rx gear and rate during UFS initialization based
on DT property.

Also update the phy_gear to ensure PHY calibrations align with the
required gear and rate.

Signed-off-by: Ram Kumar Dwivedi <quic_rdwivedi@quicinc.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>