tools: binman: Add a new entry type for Intel VBT

This adds a new entry type for Intel Video BIOS Table.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/test/46_intel-vbt.dts b/tools/binman/test/46_intel-vbt.dts
new file mode 100644
index 0000000..733f575
--- /dev/null
+++ b/tools/binman/test/46_intel-vbt.dts
@@ -0,0 +1,14 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		size = <16>;
+
+		intel-vbt {
+			filename = "vbt.bin";
+		};
+	};
+};