Blackfin: ldrinfo: new command

Simple command to decode/check an LDR image before we try to boot it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/README b/README
index bd03523..c128a6c 100644
--- a/README
+++ b/README
@@ -653,6 +653,7 @@
 		CONFIG_CMD_ITEST	  Integer/string test of 2 values
 		CONFIG_CMD_JFFS2	* JFFS2 Support
 		CONFIG_CMD_KGDB		* kgdb
+		CONFIG_CMD_LDRINFO	  ldrinfo (display Blackfin loader)
 		CONFIG_CMD_LOADB	  loadb
 		CONFIG_CMD_LOADS	  loads
 		CONFIG_CMD_MD5SUM	  print md5 message digest