ARM: dts: meson6: add the APB2 bus

The Mali GPU and the DVB demulator are located in the APB2 bus. Describe
this bus so we can add devices to it.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm/boot/dts/meson6.dtsi

@@ -70,6 +70,14 @@ cpu@201 {
 		};
 	};
 
+	apb2: bus@d0000000 {
+		compatible = "simple-bus";
+		reg = <0xd0000000 0x40000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0xd0000000 0x40000>;
+	};
+
 	xtal: xtal-clk {
 		compatible = "fixed-clock";
 		clock-frequency = <24000000>;