Retire LOCAL_NDK_VERSION.

Bug: 6932421
Change-Id: I63df073c8f4dc638e33e3560eb3a218656c4fd54
am a88a10a6: Retire LOCAL_NDK_VERSION.

* commit 'a88a10a6ed9f9801852929bac34bdf10510116f4':
  Retire LOCAL_NDK_VERSION.
Update libyuv to r397

Change-Id: I70f5a527de52ae8ae80b189873c9a094035dfa2c
Signed-off-by: Hendrik Dahlkamp <hendrik@google.com>
am 33cfdeb7: Update libyuv to r397

# Via Adam Hampson
* commit '33cfdeb7b267ab635413797fffb046b73272f7ec':
  Update libyuv to r397
Enable neon-optimized functions

Change-Id: I0d5894e0b71aefa7d8d30c943aa6d0698b38fb8f
Signed-off-by: Hendrik Dahlkamp <hendrik@google.com>
am b55f69c3: Enable neon-optimized functions

# Via Hendrik Dahlkamp
* commit 'b55f69c3fdd4a53d439bba9e8bd047846e1f4783':
  Enable neon-optimized functions
Merge tag 'android-4.3_r2.1' into jellybean-mr2.1

Android 4.3 release 2.1