ASoC: audio-graph-card2: use correct endpoint when getting link parameters

ASoC: audio-graph-card2: use correct endpoint when getting link parameters

When link DT nodes are parsed, most functions get port as a parameter,
which results in port endpoint@0 always being used. However, each endpoint
might have different settings, but those are currently ignored.

Fix that by passing endpoint instead of port when parsing link parameters.

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/20250121064815.741820-1-ivo.g.dimitrov.75@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>