ionic: fix up filter locks and debug msgs

[ Upstream commit cbec2153 ]

Add in a couple of forgotten spinlocks and fix up some of
the debug messages around filter management.

Fixes: c1e329eb ("ionic: Add management of rx filters")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>