main/unl0kr: upgrade to 0.2.0_git20220817

This includes a bunch of fixes and improvements that had piled up since 0.1.0. For details, you may refer to the changelog.

Most importantly this includes fixes in lvgl's framebuffer driver that should make unl0kr work on the asus-me176c (https://gitlab.com/cherrypicker/unl0kr/-/issues/35). @Minecrell if you could test and confirm this, that'd be much appreciated.

Relates to: #1411 (closed)