feat: add missing netfilter consts

[my4ng]

This PR adds some missing netfilter constants from:

• linux/netfilter.h
• linux/netfilter_arp.h
• linux/netfilter_bridge.h
• linux/netfilter_ipv4.h
• linux/netfilter_ipv6.h

Unresolved questions:

• NF_NETDEV_NUMHOOKS and NF_NETDEV_INGRESS were not moved from semver/linux-gnu.txt to semver/linux.txt during Make netfilter constants available for musl Linux targets #2152. Should that be rectified now?
• NF_NETDEV_NUMHOOKS value was changed from 1 to 2 in linux kernel 5.16 (torvalds/linux@42df6e1) and hence some workaround was added to libc_test/build.rs:

  libc/libc-test/build.rs

  Line 1842 in acc7bb1

  | "NF_NETDEV_NUMHOOKS"

  libc/libc-test/build.rs

  Line 3940 in acc7bb1

  "NF_NETDEV_NUMHOOKS" => true,

  Is it OK to chnage them to 2 now and remove those lines or do we have to maintain some level of backwards-compatibility?
• Similarly, what about new constants introduced later, e.g. NF_IP_PRI_RAW_BEFORE_DEFRAG introduced in 5.10?

[rustbot]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @JohnTitor (or someone else) some time within the next two weeks.

Please see the contribution instructions for more information. Namely, in order to ensure the minimum review times lag, PR authors and assigned reviewers should ensure that the review label (S-waiting-on-review and S-waiting-on-author) stays updated, invoking these commands when appropriate:

• @rustbot author: the review is finished, PR author should check the comments and take action accordingly
• @rustbot review: the author is ready for a review, this PR will be queued again in the reviewer's queue