ASoC: tlv320adcx140: Fix various style errors and warnings

Fix white space issues and remove else case where it was not needed.
Convert "static const char *" to "static const char * const"

Fixes: 689c7655 ("ASoC: tlv320adcx140: Add the tlv320adcx140 codec driver family")
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200728164339.16841-1-dmurphy@ti.com


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