In order to include a reference to the Raspberry Pi 5, and that the
support for 3.3 and 4.1 got dropped.
Acked-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25851>