[ATM]: [lec] convert lec_arp_table to hlist

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/atm/lec.c
Simple merge

diff --cc net/atm/lec.h
Simple merge

diff --cc net/atm/lec_arpc.h
Simple merge