There are cases where the freedreno `crashdec` program will not be built, but will still be used. By making dep_lua a disabler, we move closer to being able to have those tests automatically disabled when crashdec isn't built. Acked-by: Rob Clark <rob.clark@oss.qualcomm.com> Acked-by: Emma Anholt <emma@anholt.net> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38579>