arm64: dts: qcom: sc7280-chrome-common: disable Venus

Iris driver doesn't support non-PAS/TZ setup for setting up the Iris
core. It's expected that the ABI that is going to be used in a long-term
would be different from the defined venus-firmware subnode.

Granted that the SC7280 Chromebooks were cancelled before reaching wide
audience and granted the feature ABI changes, drop venus configuration
for SC7280 ChromeOS devices.

Suggested-by: Stephan Gerhold <[email protected]>
Cc: Douglas Anderson <[email protected]>
Reviewed-by: Konrad Dybcio <[email protected]>
Acked-by: Douglas Anderson <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/20260131-venus-iris-flip-switch-v4-1-e10b886771e1@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <[email protected]>

arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi

@@ -140,17 +140,6 @@
 	dma-coherent;
 };
 
-&venus {
-	iommus = <&apps_smmu 0x2180 0x20>,
-		 <&apps_smmu 0x2184 0x20>;
-
-	status = "okay";
-
-	video-firmware {
-		iommus = <&apps_smmu 0x21a2 0x0>;
-	};
-};
-
 &watchdog {
 	status = "okay";
 };