ASoC: sigmadsp-regmap: fix kernel-doc warning

make W=1 warning:

sound/soc/codecs/sigmadsp-regmap.c:42: warning: expecting prototype
for devm_sigmadsp_init_i2c(). Prototype was for
devm_sigmadsp_init_regmap() instead

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210302205926.49063-5-pierre-louis.bossart@linux.intel.com


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