arm64: dts: qcom: sm8550: misc style fixes

Miscellaneous DT fixes to remove spurious blank line and enhance readability.

Fixes: ffc50b2d ("arm64: dts: qcom: Add base SM8550 dtsi")
Fixes: d7da51db ("arm64: dts: qcom: sm8550: add display hardware devices")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230308-topic-sm8550-upstream-dt-fixups-v1-3-595b02067672@linaro.org