The audio codec connection on MBa8Mx is identical to MBa7 (imx7) and MBa6
(imx6). Use the same sound card model as well.

Fixes commit dfcd1b6f ("arm64: dts: freescale: add initial device tree
for TQMa8MQML with i.MX8MM")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>