arm64: dts: qcom: sdm845: remove unnecessary properties for dsi nodes

We get a warning about unnecessary properties of

arch/arm64/boot/dts/qcom/sdm845.dtsi:2211.22-2257.6: Warning (avoid_unnecessary_addr_size): /soc/mdss@ae00000/dsi@ae94000: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
arch/arm64/boot/dts/qcom/sdm845.dtsi:2278.22-2324.6: Warning (avoid_unnecessary_addr_size): /soc/mdss@ae00000/dsi@ae96000: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property

So, remove these properties

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>