batman-adv: prefer ether_addr_copy to memcpy

On some architectures ether_addr_copy() is slightly faster
than memcpy() therefore use the former when possible.

Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>

diff --cc net/batman-adv/bat_iv_ogm.c
Simple merge

diff --cc net/batman-adv/bridge_loop_avoidance.c
Simple merge

diff --cc net/batman-adv/distributed-arp-table.c
Simple merge

diff --cc net/batman-adv/fragmentation.c
Simple merge

diff --cc net/batman-adv/gateway_client.c
Simple merge

diff --cc net/batman-adv/icmp_socket.c
Simple merge

diff --cc net/batman-adv/main.c
Simple merge

diff --cc net/batman-adv/network-coding.c
Simple merge

diff --cc net/batman-adv/originator.c
Simple merge

diff --cc net/batman-adv/routing.c
Simple merge

diff --cc net/batman-adv/send.c
Simple merge

diff --cc net/batman-adv/soft-interface.c
Simple merge

diff --cc net/batman-adv/translation-table.c
Simple merge