[ChromeOS] Assess and improve Tast tests selection

[a-wai]

A significant number of Tast tests are enabled in KernelCI. However, several of those are skipped due to missing proprietary components, or always fail due to e.g. specific kernel features which only exist in downstream ChromeOS kernels.

In order to provide meaningful results and provide value to community users, we should improve this situation and only run tests compatible with the open-source ChromiumOS running on a mainline kernel.
This effort should initially focus on codec and performance tests as those are currently the ones with identified users.

• Analyse test results for currently enabled codec tests
• List tests not passing due to missing dependencies and/or kernel features
• Assess if/how we can fix some of those and drop irrelevant tests
• Repeat for performance tests
• Repeat for all other tests