CRAS: fix clippy lint in audio_streams

Pass SampleFormat by value to sample_bytes() function, since it
implements Copy and is small.

BUG=None
TEST=None

Change-Id: I7d87dc1db7dd5342e500b5cedf43400634daab5d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/adhd/+/2541844
Reviewed-by: Chih-Yang Hsia <paulhsia@chromium.org>
Tested-by: Fletcher Woodruff <fletcherw@chromium.org>
Commit-Queue: Fletcher Woodruff <fletcherw@chromium.org>
1 file changed