dt-bindings: clk: mediatek: Add MT8195 DPI clocks

dt-bindings: clk: mediatek: Add MT8195 DPI clocks

Expand dt-bindings slot for VDOSYS1 of MT8195.
This clock is required by the DPI1 hardware
and is a downstream of the HDMI pixel clock.

Signed-off-by: Pablo Sun <pablo.sun@mediatek.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220919-v1-1-4844816c9808@baylibre.com
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>