We use magic numbers for node types in many
places of the RADV code. This commit adds an enum
for the node types and uses it to replace magic
numbers in the acceleration structure build code.
Signed-off-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16650>