binman: Add support for CBFS entries

Add support for putting CBFSs (Coreboot Filesystems) in an image. This
allows binman to produce firmware images used by coreboot to boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/test/105_cbfs_raw_compress.dts b/tools/binman/test/105_cbfs_raw_compress.dts
new file mode 100644
index 0000000..646168d
--- /dev/null
+++ b/tools/binman/test/105_cbfs_raw_compress.dts
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		cbfs {
+			size = <0x140>;
+			u-boot {
+				type = "text";
+				text = "compress xxxxxxxxxxxxxxxxxxxxxx data";
+				cbfs-type = "raw";
+				cbfs-compress = "lz4";
+			};
+			u-boot-dtb {
+				type = "text";
+				text = "compress xxxxxxxxxxxxxxxxxxxxxx data";
+				cbfs-type = "raw";
+				cbfs-compress = "lzma";
+			};
+		};
+	};
+};