dt-bindings: ingenic,x1000-cgu: Add audio clocks

Add bindings for audio-related clocks on the Ingenic X1000 SoC.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Link: https://lore.kernel.org/r/20221026194345.243007-5-aidanmacdonald.0x0@gmail.com


Signed-off-by: Stephen Boyd <sboyd@kernel.org>