ALSA: core: pcm_iec958: fix kernel-doc

Fix W=1 warning. The kernel doc uses the hwparams type instead of the
argument name.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200702193842.169215-1-pierre-louis.bossart@linux.intel.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/core/pcm_iec958.c

@@ -103,7 +103,7 @@ EXPORT_SYMBOL(snd_pcm_create_iec958_consumer);
 
 /**
  * snd_pcm_create_iec958_consumer_hw_params - create IEC958 channel status
- * @hw_params: the hw_params instance for extracting rate and sample format
+ * @params: the hw_params instance for extracting rate and sample format
  * @cs: channel status buffer, at least four bytes
  * @len: length of channel status buffer
  *