clk: zynqmp: Add support for for DP audio/video clocks

Add support for getting rate for DP audio and video clocks.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/8792efe1fd9715f7c8a2e1e24f0454fb5b25d833.1648552434.git.michal.simek@xilinx.com
diff --git a/drivers/clk/clk_zynqmp.c b/drivers/clk/clk_zynqmp.c
index 9038fb8..45c679a 100644
--- a/drivers/clk/clk_zynqmp.c
+++ b/drivers/clk/clk_zynqmp.c
@@ -238,6 +238,12 @@
 		return CRF_APB_DBG_TRACE_CTRL;
 	case dbg_tstmp:
 		return CRF_APB_DBG_TSTMP_CTRL;
+	case dp_video_ref:
+		return CRF_APB_DP_VIDEO_REF_CTRL;
+	case dp_audio_ref:
+		return CRF_APB_DP_AUDIO_REF_CTRL;
+	case dp_stc_ref:
+		return CRF_APB_DP_STC_REF_CTRL;
 	case gpu_ref ...  gpu_pp1_ref:
 		return CRF_APB_GPU_REF_CTRL;
 	case ddr_ref:
@@ -673,6 +679,7 @@
 	case dll_ref:
 		return zynqmp_clk_get_dll_rate(priv);
 	case gem_tsu_ref:
+	case dp_video_ref ... dp_stc_ref:
 	case pl0 ... pl3:
 	case gem0_ref ... gem3_ref:
 	case gem0_tx ... gem3_tx: