Add hdmi-sound node to rk3066a.dtsi, so that it
can be reused by boards with HDMI support.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/5fe7c2fe-4a38-436a-8017-66989959329a@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>