Providing a Helped-by tag fits well to indicate someone had helped with the
development of a patch, to the level that still doesn't warrant providing
a Co-developed-by tag, but is much more than it would've been indicated by
providing a Suggested-by tag.  The Helped-by tag been already used recently
a few times in accepted patches. [1]

With all this in mind, let's have Helped-by supported in checkpatch.pl.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/?qt=grep&q=Helped-by

Signed-off-by: Dragan Simic <dsimic@manjaro.org>
---
 scripts/checkpatch.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 4427572b2477..b89e62e9c2dd 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -622,6 +622,7 @@ our $signature_tags = qr{(?xi:
 	Reviewed-by:|
 	Reported-by:|
 	Suggested-by:|
+	Helped-by:|
 	To:|
 	Cc:
 )};