binman: Support enabling debug in tests

The elf module can provide some debugging information to assist with
figuring out what is going wrong. This is also useful in tests. Update the
-D option so that it is passed through to tests as well.

Signed-off-by: Simon Glass <sjg@chromium.org>

tools/binman/elf.py

@@ -14,6 +14,9 @@ import struct
 
 import tools
 
+# This is enabled from control.py
+debug = False
+
 Symbol = namedtuple('Symbol', ['section', 'address', 'size', 'weak'])
 
 # Used for tests which don't have an ELF file to read