powerpc: Enable device tree support for P5040DS

Add device tree for P5040DS board and enable CONFIG_OF_CONTROL
so that device tree can be compiled.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
diff --git a/arch/powerpc/dts/p5040ds.dts b/arch/powerpc/dts/p5040ds.dts
new file mode 100644
index 0000000..723d31d
--- /dev/null
+++ b/arch/powerpc/dts/p5040ds.dts
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0+ OR X11
+/*
+ * P5040DS Device Tree Source
+ *
+ * Copyright 2012 - 2015 Freescale Semiconductor Inc.
+ * Copyright 2019 NXP
+ */
+
+/include/ "p5040.dtsi"
+
+/ {
+	model = "fsl,P5040DS";
+	compatible = "fsl,P5040DS";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	interrupt-parent = <&mpic>;
+
+};