ASoC: TSCS42xx: Fix control names

The tscs42xx CODEC driver can confuse userspace with non-standard
control names.

Remove "Switch" from enum control type names.
Add "Switch" to on/off control type names.

Signed-off-by: Steven Eckhoff <steven.eckhoff.opensource@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>