arm64: zynqmp: Sync DP subsystem

Sync DP subsystem with the latest state in Xilinx U-Boot repository.
This binding hasn't been approved in mainline Linux but it is much better
than ancient version which this patch removes.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/dts/zynqmp-clk-ccf.dtsi b/arch/arm/dts/zynqmp-clk-ccf.dtsi
index 0b0fb6e..b02ef22 100644
--- a/arch/arm/dts/zynqmp-clk-ccf.dtsi
+++ b/arch/arm/dts/zynqmp-clk-ccf.dtsi
@@ -284,11 +284,15 @@
 	clocks = <&zynqmp_clk AMS_REF>;
 };
 
+&zynqmp_dpsub {
+	clocks = <&dp_aclk>, <&zynqmp_clk DP_AUDIO_REF>, <&zynqmp_clk DP_VIDEO_REF>;
+};
+
 &xlnx_dpdma {
 	clocks = <&zynqmp_clk DPDMA_REF>;
 };
 
-&xlnx_dp_snd_codec0 {
+&zynqmp_dp_snd_codec0 {
 	clocks = <&zynqmp_clk DP_AUDIO_REF>;
 };