nir/deref: Fix a typo

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3754
Fixes: df51518dc5b "nir/opt_deref: Add a deref mode specialization..."
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7459>
1 file changed