radv: Fix budget calculations with large BAR.

If we don't have a non-visible VRAM heap, we should be counting
our non-visible VRAM allocations to the visible-VRAM heap.

CC: mesa-stable
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6827>
2 files changed