patman: Don't try to process checkpatch lines twice

Once we have determined what the line refers to there is no point in
processing it further. Update the logic to continue to the next line in
these cases.
Signed-off-by: NSimon Glass <sjg@chromium.org>

tools/patman/checkpatch.py

@@ -91,9 +91,11 @@ def CheckPatch(fname, verbose=False):
             print(line)
 
         # A blank line indicates the end of a message
-        if not line and item:
-            result.problems.append(item)
-            item = {}
+        if not line:
+            if item:
+                result.problems.append(item)
+                item = {}
+            continue
         match = re_stats_full.match(line)
         if not match:
             match = re_stats.match(line)
@@ -105,10 +107,13 @@ def CheckPatch(fname, verbose=False):
                 result.lines = int(match.group(4))
             else:
                 result.lines = int(match.group(3))
+            continue
         elif re_ok.match(line):
             result.ok = True
+            continue
         elif re_bad.match(line):
             result.ok = False
+            continue
         err_match = re_error.match(line)
         warn_match = re_warning.match(line)
         file_match = re_file.match(line)