WIP: Integrate RAUC and U-Boot

Change-Id: I699e72e3229953af62393b9a1fa199e6767aba0b
diff --git a/board/czechlight/clearfog/genimage.cfg b/board/czechlight/clearfog/genimage.cfg
index 8963619..9ec9991 100644
--- a/board/czechlight/clearfog/genimage.cfg
+++ b/board/czechlight/clearfog/genimage.cfg
@@ -1,3 +1,12 @@
+image boot.vfat {
+	vfat {
+		files = {
+			"boot.scr",
+		}
+	}
+	size = 1M
+}
+
 image sdcard.img {
 	hdimage {
 	}
@@ -8,9 +17,19 @@
 		offset = 512
 	}
 
-	partition rootfs {
+	partition boot {
+		partition-type = 0xc
+		image = "boot.vfat"
+		offset = 1M
+	}
+
+	partition rootfs-A {
 		partition-type = 0x83
 		image = "rootfs.ext4"
-		offset = 1M
+	}
+
+	partition rootfs-B {
+		partition-type = 0x83
+		image = "rootfs.ext4"
 	}
 }