usb: core: ledtrig-usbport: Demote obvious misuse of kerneldoc to standard comment blocks

No attempt has been made to document any of the functions here.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/core/ledtrig-usbport.c:42: warning: Function parameter or member 'usbport_data' not described in 'usbport_trig_usb_dev_observed'
 drivers/usb/core/ledtrig-usbport.c:42: warning: Function parameter or member 'usb_dev' not described in 'usbport_trig_usb_dev_observed'
 drivers/usb/core/ledtrig-usbport.c:71: warning: Function parameter or member 'usbport_data' not described in 'usbport_trig_update_count'
 drivers/usb/core/ledtrig-usbport.c:131: warning: Function parameter or member 'usbport_data' not described in 'usbport_trig_port_observed'
 drivers/usb/core/ledtrig-usbport.c:131: warning: Function parameter or member 'usb_dev' not described in 'usbport_trig_port_observed'
 drivers/usb/core/ledtrig-usbport.c:131: warning: Function parameter or member 'port1' not described in 'usbport_trig_port_observed'

Cc: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200703174148.2749969-4-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/core/ledtrig-usbport.c

@@ -34,7 +34,7 @@ struct usbport_trig_port {
  * Helpers
  ***************************************/
 
-/**
+/*
  * usbport_trig_usb_dev_observed - Check if dev is connected to observed port
  */
 static bool usbport_trig_usb_dev_observed(struct usbport_trig_data *usbport_data,
@@ -64,7 +64,7 @@ static int usbport_trig_usb_dev_check(struct usb_device *usb_dev, void *data)
 	return 0;
 }
 
-/**
+/*
  * usbport_trig_update_count - Recalculate amount of connected matching devices
  */
 static void usbport_trig_update_count(struct usbport_trig_data *usbport_data)
@@ -123,7 +123,7 @@ static const struct attribute_group ports_group = {
  * Adding & removing ports
  ***************************************/
 
-/**
+/*
  * usbport_trig_port_observed - Check if port should be observed
  */
 static bool usbport_trig_port_observed(struct usbport_trig_data *usbport_data,