Add support for the IN_FORMATS_ASYNC DRM property

[k2naveen]

This property lets the driver specify which format+modifier combinations are actually supported with tearing, and we use that in the dmabuf feedback to make tearing work in more cases (with sync fallback) - matching the approach taken in KWin.

[matte-schwartz]

Are there kernel patches necessary for this to work? I tried a few games (Hades II, Portal 2) on my MSI Claw and none seem to tear, even with this PR. The same in-game settings on AMD do tear.

[k2naveen]

Are there kernel patches necessary for this to work? I tried a few games (Hades II, Portal 2) on my MSI Claw and none seem to tear, even with this PR. The same in-game settings on AMD do tear.

Is there another way to test this using a standalone Gamescope binary? Currently, vkcube fails with the following logs::
$ MESA_VK_WSI_PRESENT_MODE=immediate GAMESCOPE_DEBUG=2 gamescope --backend drm --immediate-flips

$ vkcube --present_mode VK_PRESENT_MODE_IMMEDIATE_KHR
Present mode specified is not supported

[matte-schwartz]

I'll have to check locally, as usually I just use our standard gamescope-session setup on SteamOS for testing tearing.