patman: Flush output when there is no newline

Output which does not include a newline will not be displayed unless
flushed. Add a flush to ensure that it becomes visible.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/patman/terminal.py b/tools/patman/terminal.py
index e78a7c1..af3593e 100644
--- a/tools/patman/terminal.py
+++ b/tools/patman/terminal.py
@@ -55,6 +55,8 @@
         print text,
         if newline:
             print
+        else:
+            sys.stdout.flush()
 
 def SetPrintTestMode():
     """Go into test mode, where all printing is recorded"""