VP8 for ARMv8 by using NEON intrinsics 14

Add sixtappredict_neon.c
- vp8_sixtap_predict16x16_neon
- vp8_sixtap_predict8x8_neon
- vp8_sixtap_predict8x4_neon
- vp8_sixtap_predict4x4_neon

Change-Id: I3b02fce48ae2e6c6099041ba5ddd7b090f1463b9
Signed-off-by: James Yu <james.yu@linaro.org>
6 files changed