ax25: Fix SIOCAX25GETINFO ioctl

rcv_q & snd_q initializations were reversed in commit
31e6d363
(net: correct off-by-one write allocations reports)

Signed-off-by: Jan Rafaj <jr+netfilter-devel@cedric.unob.cz>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>