style: Strip newline when checking lines

The style checker incorrectly includes newlines when checking lines of
code, which effectively decreases the column limit by 1. This
changeset strips the newline character from before calling line
checkers.

Change-Id: I0a8c7707ece57d782d11cc86db4b8064db291ce0
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>

util/style.py

@@ -236,6 +236,7 @@ class Verifier(object):
         for num,line in enumerate(f):
             if num not in regions:
                 continue
+            line = line.rstrip('\n')
             if not self.check_line(line):
                 self.write("invalid %s in %s:%d\n" % \
                            (self.test_name, filename, num + 1))