checkpatch: do not check missing blank line before builtin_*_driver

checkpatch.pl does not check missing blank line before module_*_driver.
I want it to behave likewise for builtin_*_driver.

Link: http://lkml.kernel.org/r/1505700081-12854-1-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

scripts/checkpatch.pl

@@ -3105,6 +3105,7 @@ sub process {
 		      $line =~ /^\+[a-z_]*init/ ||
 		      $line =~ /^\+\s*(?:static\s+)?[A-Z_]*ATTR/ ||
 		      $line =~ /^\+\s*DECLARE/ ||
+		      $line =~ /^\+\s*builtin_[\w_]*driver/ ||
 		      $line =~ /^\+\s*__setup/)) {
 			if (CHK("LINE_SPACING",
 				"Please use a blank line after function/struct/union/enum declarations\n" . $hereprev) &&