feat: add GSO flags for linux and android

[elecm]

Add Generic Segmentation Offload (GSO) flags based on if_tun.h header in Linux and if_tun.h header in Android source code.
Include the IFF_NO_CARRIER flag as well (found in the same files mentioned in the previous paragraph).

There is a PR similar to mine, but that PR doesn't include GSO flags for UDP (TUN_F_USO4 and TUN_F_USO6), and it is only for Linux. And also, I used c_uinttype for GSO flags because related ioctl function (#define TUNSETOFFLOAD _IOW('T', 208, unsigned int)) get unsigned int but that PR uses c_ushort.

[rustbot]

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[elecm]

Tests were run on Ubuntu 22.04, but its kernel does not support IFF_NO_CARRIER, TUN_F_USO4, and TUN_F_USO6.
Ubuntu 22.04.3 upgrades its kernel to 6.2 and supports them.

[bors]

☔ The latest upstream changes (presumably #3320) made this pull request unmergeable. Please resolve the merge conflicts.

[devnexen]

Tests were run on Ubuntu 22.04, but its kernel does not support IFF_NO_CARRIER, TUN_F_USO4, and TUN_F_USO6. Ubuntu 22.04.3 upgrades its kernel to 6.2 and supports them.

If that is the case, it s necessary to put the aforementioned constants as exceptions in the skip_const() helper.

[JohnTitor]

Could you squash commits into one?

[elecm]

I will open another PR, I couldn't squash a merge commit in my commits.