ASoC: cs42l42: Move cs42l42_supply_names to .c file

The array of supply name strings doesn't need to be in the header file.
Move it to the .c file.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220817122347.1356773-4-rf@opensource.cirrus.com


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