misc: mic: card: mic_debugfs: Demote function headers from kerneldoc

The correct format is not used and no attempt has been made
to document the function arguments.  Makes sense to just demote
the headers back down to simple comments.

Fixes the following W=1 warnings:

 drivers/misc/mic/card/mic_debugfs.c:31: warning: Function parameter or member 's' not described in 'mic_intr_show'
 drivers/misc/mic/card/mic_debugfs.c:31: warning: Function parameter or member 'unused' not described in 'mic_intr_show'
 drivers/misc/mic/card/mic_debugfs.c:53: warning: Function parameter or member 'mdrv' not described in 'mic_create_card_debug_dir'
 drivers/misc/mic/card/mic_debugfs.c:67: warning: Function parameter or member 'mdrv' not described in 'mic_delete_card_debug_dir'

Cc: Sudeep Dutt <sudeep.dutt@intel.com>
Cc: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200701083118.45744-14-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mic/card/mic_debugfs.c

@@ -24,7 +24,7 @@
 /* Debugfs parent dir */
 static struct dentry *mic_dbg;
 
-/**
+/*
  * mic_intr_show - Send interrupts to host.
  */
 static int mic_intr_show(struct seq_file *s, void *unused)
@@ -46,7 +46,7 @@ static int mic_intr_show(struct seq_file *s, void *unused)
 
 DEFINE_SHOW_ATTRIBUTE(mic_intr);
 
-/**
+/*
  * mic_create_card_debug_dir - Initialize MIC debugfs entries.
  */
 void __init mic_create_card_debug_dir(struct mic_driver *mdrv)
@@ -60,7 +60,7 @@ void __init mic_create_card_debug_dir(struct mic_driver *mdrv)
 			    &mic_intr_fops);
 }
 
-/**
+/*
  * mic_delete_card_debug_dir - Uninitialize MIC debugfs entries.
  */
 void mic_delete_card_debug_dir(struct mic_driver *mdrv)
@@ -68,7 +68,7 @@ void mic_delete_card_debug_dir(struct mic_driver *mdrv)
 	debugfs_remove_recursive(mdrv->dbg_dir);
 }
 
-/**
+/*
  * mic_init_card_debugfs - Initialize global debugfs entry.
  */
 void __init mic_init_card_debugfs(void)
@@ -76,7 +76,7 @@ void __init mic_init_card_debugfs(void)
 	mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
 }
 
-/**
+/*
  * mic_exit_card_debugfs - Uninitialize global debugfs entry
  */
 void mic_exit_card_debugfs(void)