arm64: dts: qcom: sc7180: Fix one forgotten interconnect reference

In commit e23b1220 ("arm64: dts: qcom: sc7180: Increase the number
of interconnect cells") we missed increasing the cells on one
interconnect.  That's no bueno.  Fix it.

NOTE: it appears that things aren't totally broken without this fix,
but clearly something isn't going to be working right.  If nothing
else, without this fix I see this in the logs:

  OF: /soc@0/mdss@ae00000: could not get #interconnect-cells for /soc@0/interrupt-controller@17a00000

Fixes: e23b1220 ("arm64: dts: qcom: sc7180: Increase the number of interconnect cells")
Reviewed-by: Georgi Djakov <georgi.djakov@linaro.org>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20201001141838.1.I08054d1d976eed64ffa1b0e21d568e0dc6040b54@changeidSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/sc7180.dtsi

@@ -2811,7 +2811,7 @@ mdss: mdss@ae00000 {
 			interrupt-controller;
 			#interrupt-cells = <1>;
 
-			interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>;
+			interconnects = <&mmss_noc MASTER_MDP0 0 &mc_virt SLAVE_EBI1 0>;
 			interconnect-names = "mdp0-mem";
 
 			iommus = <&apps_smmu 0x800 0x2>;