ASoC: dt-bindings: sun50i-dmic: Add D1 compatible string

The Allwinner D1 SoC has a DMIC codec like the one in the H6. It appears
to be register-compatible with the H6 variant, and the existing Linux
driver has been tested on a D1-based board, the Lichee RV 86 Panel.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Ban Tao <fengzheng923@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221116034621.37762-1-samuel@sholland.org


Signed-off-by: Mark Brown <broonie@kernel.org>