arm64: dts: freescale: imx8m[mp]-verdin: Update audio card name

arm64: dts: freescale: imx8m[mp]-verdin: Update audio card name

On the Dahlia and Development carrier boards for the Verdin family
(iMX8MM and iMX8MP), WM8904 and NAU8822 codecs are used. Instead of
module-specific names, switch to more generic names based on the codec
employed on the carrier board itself.

This modification facilitates access to ALSA card names, ensuring
consistency across iMX8MP and iMX8MM, as they share the same carrier
board.

Signed-off-by: Hiago De Franco <hiago.franco@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>