ASoC: fsl: fsl_qmc_audio: Drop struct qmc_dai_chan

prtd_tx and prtd_rx members are not used anymore and only qmc_chan
member remains so struct qmc_dai_chan has become pointless.

Use qmc_chan directly and drop struct qmc_dai_chan.

Acked-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://patch.msgid.link/9c729bbd9f1b61120a09a87fb76176ef344c5153.1758209158.git.christophe.leroy@csgroup.eu


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