landlock: Log TCP bind and connect denials

landlock: Log TCP bind and connect denials

Add audit support to socket_bind and socket_connect hooks.

The related blockers are:
- net.bind_tcp
- net.connect_tcp

Audit event sample:

  type=LANDLOCK_DENY msg=audit(1729738800.349:44): domain=195ba459b blockers=net.connect_tcp daddr=127.0.0.1 dest=80

Cc: Günther Noack <gnoack@google.com>
Cc: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Cc: Mikhail Ivanov <ivanov.mikhail1@huawei-partners.com>
Link: https://lore.kernel.org/r/20250320190717.2287696-16-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>