bpf: netdev: init the offload table earlier

Some netdevices may get unregistered before late_initcall(),
we have to move the hashtable init earlier.

Fixes: f1fc43d0 ("bpf: Move offload initialization into late_initcall")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217399


Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20230505215836.491485-1-kuba@kernel.org


Signed-off-by: Alexei Starovoitov <ast@kernel.org>