Revert "drm/radeon: only mark audio as connected if the monitor supports it (v3)"

This breaks too many things.

bugs:
https://bugzilla.kernel.org/show_bug.cgi?id=99041
https://bugs.freedesktop.org/show_bug.cgi?id=90681

This reverts commit 0f55db36.

Cc: stable@vger.kernel.org