ASoC: dt-bindings: sun8i-a23-codec-analog: add compatible for Allwinner V3

The analog codec frontend of the Allwinner V3 is compatible with the
analog codec frontend used on the Allwinner H3.
This patch adds a compatible string for the analog codec frontend on the
Allwinner V3 SoC.

Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210514134405.2097464-5-t.schramm@manjaro.org