[AX.25]: Rename ax25_encapsulate to ax25_hard_header

Rename ax25_encapsulate to ax25_hard_header which these days more
accurately describes what the function is supposed to do.

Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/hamradio/dmascc.c b/drivers/net/hamradio/dmascc.c
index d8a45db..3be3f91 100644
--- a/drivers/net/hamradio/dmascc.c
+++ b/drivers/net/hamradio/dmascc.c
@@ -600,7 +600,7 @@
 		dev->do_ioctl = scc_ioctl;
 		dev->hard_start_xmit = scc_send_packet;
 		dev->get_stats = scc_get_stats;
-		dev->hard_header = ax25_encapsulate;
+		dev->hard_header = ax25_hard_header;
 		dev->rebuild_header = ax25_rebuild_header;
 		dev->set_mac_address = scc_set_mac_address;
 	}