intel_combo_phy_power_up_lanes incorrectly shifting PWR_DOWN bits

In intel_combo_phy_power_up_lanes, lane_mask is shifted by PWR_DOWN_LN_SHIFT before being written to ICL_PORT_CL_DW10. However, the #defines that are assigned to lane_mask already include the necessary shift, so the desired bits are never set. I believe this results in none of the lanes ever being powered down.