Change the ALSA prefix for the CS35L56 to "AMPn".

This keeps them consistent with the CS35L56 HDA driver. It also
avoids coding the chip ID into the control name, so that other
Cirrus amps with the same controls can have the same control
names.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 05fe6284 ("ASoC: Intel: soc-acpi-intel-mtl-match: add acpi match table for cdb35l56-eight-c")
Link: https://msgid.link/r/20231205115715.2460386-1-rf@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>