wimax/i2400m: Update comments to talk about SDIO reset and not USB.

Fixing comments from original cut and paste error
Signed-off-by: NDirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: NInaky Perez-Gonzalez <inaky@linux.intel.com>

drivers/net/wimax/i2400m/sdio.c

@@ -233,18 +233,17 @@ int __i2400ms_send_barker(struct i2400ms *i2400ms,
  * Warm reset:
  *
  * The device will be fully reset internally, but won't be
- * disconnected from the USB bus (so no reenumeration will
+ * disconnected from the bus (so no reenumeration will
  * happen). Firmware upload will be neccessary.
  *
- * The device will send a reboot barker in the notification endpoint
- * that will trigger the driver to reinitialize the state
- * automatically from notif.c:i2400m_notification_grok() into
- * i2400m_dev_bootstrap_delayed().
+ * The device will send a reboot barker that will trigger the driver
+ * to reinitialize the state via __i2400m_dev_reset_handle.
  *
- * Cold and bus (USB) reset:
+ *
+ * Cold and bus reset:
  *
  * The device will be fully reset internally, disconnected from the
- * USB bus an a reenumeration will happen. Firmware upload will be
+ * bus an a reenumeration will happen. Firmware upload will be
  * neccessary. Thus, we don't do any locking or struct
  * reinitialization, as we are going to be fully disconnected and
  * reenumerated.