arm64: dts: qcom: msm8998: add HDMI GPIOs

arm64: dts: qcom: msm8998: add HDMI GPIOs

MSM8998 GPIO pin controller reference design defines:

- CEC: pin 31
- DDC: pin 32,33
- HPD: pin 34

Downstream vendor code for reference:

https://git.codelinaro.org/clo/la/kernel/msm-4.4/-/blob/caf_migration/kernel.lnx.4.4.r38-rel/arch/arm/boot/dts/qcom/msm8998-pinctrl.dtsi#L2324-2400

mdss_hdmi_{cec,ddc,hpd}_{active,suspend}

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Marc Gonzalez <mgonzalez@freebox.fr>
Link: https://lore.kernel.org/r/20240724-hdmi-tx-v7-5-e44a20553464@freebox.fr
Signed-off-by: Bjorn Andersson <andersson@kernel.org>