checkpatch: allow copyright statements > 80 columns

Exempt copyright statements from the 80 column rule as line-splitting or
other kinds of work-arounds decrease readability in diffs.  Identify the
copyright statement by looking for '+/* Copyright (c)', case-insensitive,
at the beginning of the line.

Change-Id: I57aafd569ff2173ca7aa3f636532060fc93b2be1
Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index cdfa754..0534378 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3012,6 +3012,10 @@
 			} elsif ($line =~ /^\+.*\bEFI_GUID\s*\(/) {
 				$msg_type = "";
 
+			# Long copyright statements are another special case
+			} elsif ($rawline =~ /^\+.\*.*copyright.*\(c\).*$/i) {
+				$msg_type = "";
+
 			# Otherwise set the alternate message types
 
 			# a comment starts before $max_line_length