Simply document new compat strings.
There appears to be no need for a driver updates.
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Acked-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>