ASoC: codec: wm8960: add additional probe check for codec identification

ASoC: codec: wm8960: add additional probe check for codec identification

The wm8960 codec is not readable, resulting in a NACK for address 0x3d (8-bit).
This can partially indicate it. For example: wm8962 codec use the same address
but is readable. This additional probe check will help prevent loading the wm8960
module incorrectly on wm8962 hardware.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230713222513.1636591-1-Frank.Li@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>