This solves a circular dep and eliminates a target.
This means we will apply neon copts to some files that weren't before,
but I don't think that is a problem.
Bug: webrtc:6828,webrtc:7042
Change-Id: I3bb656ba5b13d6104b519c2dbf6a4b2814575b87
Reviewed-on: https://webrtc-review.googlesource.com/34183
Reviewed-by: Per Åhgren <peah@webrtc.org>
Commit-Queue: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21330}