arm64: dts: qcom: msm8916: Add compat qcom,msm8916-dsi-ctrl

Add silicon specific compatible qcom,msm8916-dsi-ctrl to the
mdss-dsi-ctrl block. This allows us to differentiate the specific bindings
for msm8916 against the yaml documentation.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221223021025.1646636-11-bryan.odonoghue@linaro.org

arch/arm64/boot/dts/qcom/msm8916.dtsi

@@ -1021,7 +1021,8 @@ mdp5_intf1_out: endpoint {
 			};
 
 			dsi0: dsi@1a98000 {
-				compatible = "qcom,mdss-dsi-ctrl";
+				compatible = "qcom,msm8916-dsi-ctrl",
+					     "qcom,mdss-dsi-ctrl";
 				reg = <0x01a98000 0x25c>;
 				reg-names = "dsi_ctrl";