radv: improve the error messages when a CS submission failed

While we are at it, do not duplicate the error messages for the
three different submission paths.

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/5876>
1 file changed