add support for bml dumping

Change-Id: I9dd7fd8552d4efce533c23541f3612c01e3bd90b
diff --git a/bmlutils/bmlutils.c b/bmlutils/bmlutils.c
index b264e0a..d886898 100644
--- a/bmlutils/bmlutils.c
+++ b/bmlutils/bmlutils.c
@@ -31,3 +31,9 @@
     sprintf(tmp, "/sbin/redbend_ua restore %s %s", filename, BOARD_BOOT_DEVICE);
     return __system(tmp);
 }
+
+int read_raw_image(const char* partition, const char* filename) {
+    char tmp[PATH_MAX];
+    sprintf(tmp, "dd if=/dev/block/bml7 of=%s", filename);
+    return __system(tmp);
+}