omap4: Copy device tree from Linux 5.7.y

Copy all device tree files required for omap4 panda support from
mainline Linux.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
diff --git a/arch/arm/dts/omap4-panda.dts b/arch/arm/dts/omap4-panda.dts
new file mode 100644
index 0000000..fb2f477
--- /dev/null
+++ b/arch/arm/dts/omap4-panda.dts
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ */
+/dts-v1/;
+
+#include "omap443x.dtsi"
+#include "omap4-panda-common.dtsi"
+
+/ {
+	model = "TI OMAP4 PandaBoard";
+	compatible = "ti,omap4-panda", "ti,omap4430", "ti,omap4";
+};