ASoC: cs42l42: Don't include kernel.h

kernel.h includes a lot of other headers that we don't need.
Replace with an include of types.h.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220817122347.1356773-2-rf@opensource.cirrus.com


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