arm64: dts: qcom: msm8996-*: Disable HDMI by default

Most phones ship without HDMI and leaving it enabled wrecks
havoc. Disable it in msm8996.dtsi and re-enable it on the boards
that did not disable it previously.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210608202143.247427-3-konrad.dybcio@somainline.org


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>