net: bridge: mdb: arrange internal structs so fast-path fields are close

Before this patch we'd need 2 cache lines for fast-path, now all used
fields are in the first cache line.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1 file changed