sunxi: dts: sync Allwinner V3s-related DTs from Linux 5.10-rc1

This commit imports device tree files that are related to Allwinner V3
series from Linux commit 3650b228f83a ("Linux 5.10-rc1").

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/arch/arm/dts/sun8i-v3.dtsi b/arch/arm/dts/sun8i-v3.dtsi
new file mode 100644
index 0000000..ca4672e
--- /dev/null
+++ b/arch/arm/dts/sun8i-v3.dtsi
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2019 Icenowy Zheng <icenowy@aosc.io>
+ */
+
+#include "sun8i-v3s.dtsi"
+
+&ccu {
+	compatible = "allwinner,sun8i-v3-ccu";
+};
+
+&emac {
+	/delete-property/ phy-handle;
+	/delete-property/ phy-mode;
+};
+
+&mdio_mux {
+	external_mdio: mdio@2 {
+		reg = <2>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+};
+
+&pio {
+	compatible = "allwinner,sun8i-v3-pinctrl";
+};