net: llc: Correct some function names in header

Fix the following make W=1 kernel build warning:

net/llc/llc_c_ev.c:622: warning: expecting prototype for conn_ev_qlfy_last_frame_eq_1(). Prototype was for llc_conn_ev_qlfy_last_frame_eq_1() instead
net/llc/llc_c_ev.c:636: warning: expecting prototype for conn_ev_qlfy_last_frame_eq_0(). Prototype was for llc_conn_ev_qlfy_last_frame_eq_0() instead

Reported-by: Hulk Robot <[e-mail]>
Signed-off-by: Yang Yingliang <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/llc/llc_c_ev.c

···
 }
 
 /**
- *	conn_ev_qlfy_last_frame_eq_1 - checks if frame is last in tx window
+ *	llc_conn_ev_qlfy_last_frame_eq_1 - checks if frame is last in tx window
  *	@sk: current connection structure.
  *	@skb: current event.
  *
···
 }
 
 /**
- *	conn_ev_qlfy_last_frame_eq_0 - checks if frame isn't last in tx window
+ *	llc_conn_ev_qlfy_last_frame_eq_0 - checks if frame isn't last in tx window
  *	@sk: current connection structure.
  *	@skb: current event.
  *