binman: Allow for logging information to be displayed

Binman generally operates silently but in some cases it is useful to see
what Binman is actually doing at each step. Enable some logging output
with different logging levels selectable via the -v flag.

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

tools/binman/entry.py

@@ -23,6 +23,7 @@ import sys
 import fdt_util
 import state
 import tools
+import tout
 
 modules = {}
 
@@ -272,7 +273,7 @@ class Entry(object):
         new_size = len(data)
         if state.AllowEntryExpansion():
             if new_size > self.contents_size:
-                print("Entry '%s' size change from %#x to %#x" % (
+                tout.Debug("Entry '%s' size change from %#x to %#x" % (
                     self._node.path, self.contents_size, new_size))
                 # self.data will indicate the new size needed
                 size_ok = False