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

sound/soc/codecs/sigmadsp-regmap.c

@@ -26,7 +26,7 @@ static int sigmadsp_read_regmap(void *control_data,
 }
 
 /**
- * devm_sigmadsp_init_i2c() - Initialize SigmaDSP instance
+ * devm_sigmadsp_init_regmap() - Initialize SigmaDSP instance
  * @dev: The parent device
  * @regmap: Regmap instance to use
  * @ops: The sigmadsp_ops to use for this instance