Add sk_memcpy32 to Memcpy bench.

The bench predates the implementation in SkUtils, but now that we've got it of course we want to measure our actual implementation.

BUG=skia:
R=reed@google.com, mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/302763006

git-svn-id: http://skia.googlecode.com/svn/trunk@14942 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed