dtc: add a testcase with labels

Create a source file with labels for use as a testcase
to check parsing dts files.

Signed-off-by: Milton Miller <miltonm@bga.com>

tests/label01.dts

@@ -0,0 +1,60 @@
+/memreserve/ 1000000000000000 0000000002000000;
+memrsv2: /memreserve/ 2000000000000000-20ffffffffffffff;
+/memreserve/ 0-13;
+
+/ {
+	model = "MyBoardName";
+	compatible = "MyBoardName", "MyBoardFamilyName";
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		linux,phandle = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		PowerPC,970@0 {
+			name = "PowerPC,970";
+			device_type = "cpu";
+			reg = <0>;
+			clock-frequency = <5f5e1000>;
+			timebase-frequency = <1FCA055>;
+			linux,boot-cpu;
+			i-cache-size = <10000>;
+			d-cache-size = <8000>;
+		};
+
+		PowerPC,970@1 {
+			name = "PowerPC,970";
+			device_type = "cpu";
+			reg = <1>;
+			clock-frequency = <5f5e1000>;
+			timebase-frequency = <1FCA055>;
+			i-cache-size = <10000>;
+			d-cache-size = <8000>;
+		};
+
+	};
+
+	node: randomnode {
+		prop: string = data: "\xff\0stuffstuff\t\t\t\n\n\n" data_end: ;
+		blob = [byte: 0a 0b 0c 0d de ea ad be ef byte_end: ];
+		ref = < cell: &/memory@0 cell_end: >;
+		mixed = "abc", pre: [1234] post: , gap: < aligned: a b c>;
+		subnode: child {
+		};
+		/* subnode_end: is auto-generated by node emit */
+	};
+	/* node_end: is auto-generated by node emit */
+
+	memory@0 {
+		device_type = "memory";
+		memreg: reg = <00000000 00000000 00000000 20000000>;
+	};
+
+	chosen {
+		bootargs = "root=/dev/sda2";
+		linux,platform = <00000600>;
+	};
+
+};
+