Add socket timestamping for Android

Define the `IPPROTO_ETHERNET` constant on Linux-like platforms.

This value is also now a registered protocol number IANA, called "Ethernet":

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml

Tests pass on aarch64 (9775 tests) and x86-64 (9893 tests)

Signed-off-by: Yuki Okushi <jtitor@2k36.org>

Fix s390x-installer paths

Generate documentation for all supported targets on docs.rs

<docs.rs> now supports the possibility to generate documentation for any target. Currently, to look at some docs, we still need to use https://rust-lang.github.io/libc/#platform-specific-documentation, which isn't great. I didn't remove the documentation generation from CI nor did I change the `README.md` link to documentations as I thought maybe it'd be better to keep them, but I can if you want?

Define `IPPROTO_ETHERNET` on Linux-like platforms.

Define the `IPPROTO_ETHERNET` constant on Linux-like platforms.

This value is also now a registered protocol number IANA, called "Ethernet":

https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml

I haven't run all the CI tests locally because my kernel is new too and I hit #3160.

Add trait implementations for QNX Neutrino

This change:
- adds some missing trait implementations (some structs have been moved to the correct macro)
- fixes signal handling

`@gh-tr`

I would appreciate a new libc release with this change very much, as enhancements for other crates (nix, rustix) depend on it. ❤️

getentropy addition to android

android adding sendfile64 variant

…iltered, r=JohnTitor

android: Add NLM_F_DUMP_FILTERED constant

Add `NLM_F_DUMP_FILTERED` for Android.
Bionic code reference: https://android.googlesource.com/platform/bionic/+/refs/heads/master/libc/kernel/uapi/linux/netlink.h#66

Update and release version 0.2.147

Please publish a new release of libc.