From: Eric Dumazet <redacted>
Date: Sat, 29 Dec 2012 18:02:43 -0800

From: Eric Dumazet <edumazet@google.com>

veth stats are a bit bloated. There is no need to account transmit
and receive stats, since they are absolutely symmetric.

Also use a per device atomic64_t for the dropped counter, as it
should never be used in fast path.

Signed-off-by: Eric Dumazet <edumazet@google.com>

Applied.