buildman: Set up the tout library

Use this to control info and debugging messages. Enable them if -v is
given.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/buildman/main.py b/tools/buildman/main.py
index 3cf877e..a948f36 100755
--- a/tools/buildman/main.py
+++ b/tools/buildman/main.py
@@ -25,6 +25,7 @@
 from buildman import control
 from u_boot_pylib import test_util
 from u_boot_pylib import tools
+from u_boot_pylib import tout
 
 def run_tests(skip_net_tests, debug, verbose, args):
     """Run the buildman tests
@@ -93,8 +94,12 @@
 
     # Build selected commits for selected boards
     else:
-        bsettings.setup(args.config_file)
-        ret_code = control.do_buildman(args)
+        try:
+            tout.init(tout.INFO if args.verbose else tout.WARNING)
+            bsettings.setup(args.config_file)
+            ret_code = control.do_buildman(args)
+        finally:
+            tout.uninit()
         return ret_code