[B.A.T.M.A.N.] kerneldoc cleanups

[Sven Eckelmann]

Hi,

just some minor kerneldoc cleanups of things I found while running

    (./scripts/kernel-doc -v -list net/batman-adv/*.{c,h} 2>&1 > /dev/null)| \
    grep -v Scanning|grep -v -e BATADV_TQ_LOCAL_WINDOW_SIZE \
    -e "Excess struct/union/enum/typedef member 'bcast_bits' description in 
'batadv_orig_node'" \
    -e "Excess struct/union/enum/typedef member 'real_bits' description in 
'batadv_neigh_ifinfo_bat_iv'" \
    -e '#ifdef' -e "#define" -e '#endif' \
    -e "[0-9]* warnings" \
    -e 'no structured comments found'

There are still some warnings left.

Kind regards,
        Sven