arm64: dts: qcom: sm8550-mtp: add DSI panel

Add nodes for the Visionox VTDR6130 found on the SM8550-MTP
device.

TLMM states are also added for the Panel reset GPIO and
Tearing Effect signal for when the panel is running in
DSI Command mode.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>