usb(3): Fix a few typos in source code comments

- s/paniced/panicked/

MFC after:	3 days

sys/dev/hid/hid_if.m

@@ -77,7 +77,7 @@ METHOD int intr_stop {
 
 #
 # The following function gets called from the HID keyboard driver when
-# the system has paniced. intr_setup method with NULL passed as intr parameter
+# the system has panicked. intr_setup method with NULL passed as intr parameter
 # must be called once before to let transport driver to be prepared.
 #
 METHOD void intr_poll {

sys/dev/usb/usb_transfer.c

@@ -3418,7 +3418,7 @@ usbd_clear_stall_callback(struct usb_xfer *xfer1,
  *	usbd_transfer_poll
  *
  * The following function gets called from the USB keyboard driver and
- * UMASS when the system has paniced.
+ * UMASS when the system has panicked.
  *
  * NOTE: It is currently not possible to resume normal operation on
  * the USB controller which has been polled, due to clearing of the