net/ipv4/tcp_input.c: fix compilation breakage when FASTRETRANS_DEBUG > 1

Commit: c720c7e8 missed these.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>