arm64: dts: qcom: sdm845: Add USB PHY lane two

Add the second lane registers for the USB PHY, now that the
QMP phy bindings have been updated. This way the driver can stop
reaching beyond its register region to get at the second lane.

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>