batman-adv: Prefix remaining function like macros with batadv_

Signed-off-by: Sven Eckelmann <sven@narfation.org>

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

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

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

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

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

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

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

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