ayn-odin: new device

This device has been merged into sdm845-mainline/linux some time ago, but it got removed later (for valid reasons), I have a merge request to re-introduce it https://gitlab.com/sdm845-mainline/linux/-/merge_requests/91, but there is a TODO list I would like to complete, so I can send patches upstream and avoid removing this device from the fork again. However, I don't think it should block us from adding it to pmaports. It can be switched to use linux-postmarketos-qcom-sdm845 package later

wiki: https://wiki.postmarketos.org/wiki/AYN_Odin_(ayn-odin)