arm64: dts: rockchip: support board-irdrop for rk3326-863 board

Change-Id: I3ccb3c6426d08dc1a186f86d86391a8e307e6e1b
Signed-off-by: Tony Xie <xxx@rock-chips.com>

Author: Tony Xie

arch/arm64/boot/dts/rockchip/rk3326-863-lp3-v10.dts

@@ -234,8 +234,7 @@
 
 &cpu0_opp_table {
 	/*
-	 * The irdrop of evb is 25000uV, so the delta irdrop between
-	 * evb and client board will be added to opp-tabe.
+	 * max IR-drop values on different freq condition for this board!
 	 */
 	rockchip,board-irdrop = <
 		/*MHz	MHz	uV */
@@ -245,6 +244,16 @@
 	>;
 };
 
+&dmc_opp_table {
+	/*
+	 * max IR-drop values on different freq condition for this board!
+	 */
+	rockchip,board-irdrop = <
+		/*MHz	MHz	uV */
+		451	800	75000
+	>;
+};
+
 &dsi_in_vopl {
 	status = "disabled";
 };