radv: advertise VK_AMD_memory_overallocation_behavior

Doom Eternal explicitly allows overallocation via this extension
but that shouldn't change anything because it's the default RADV
behavior.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4785>
3 files changed