net: dsa: hellcreek: Add missing PTP via UDP rules

net: dsa: hellcreek: Add missing PTP via UDP rules

[ Upstream commit 6cf01e451599da630ff1af529d61c5e4db4550ab ]

The switch supports PTP for UDP transport too. Therefore, add the missing static
FDB entries to ensure correct forwarding of these packets.

Fixes: ddd56dfe52c9 ("net: dsa: hellcreek: Add PTP clock support")
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>