R=kjellander@chromium.org

Bug: libyuv:715
Test: gn gen out/Release "--args=is_debug=false target_os=\"android\" target_cpu=\"mips64el\" mips_arch_variant=\"r6\" mips_use_msa=true is_component_build=true is_clang=true"
Change-Id: Ia3943b0afc02e05a8bc32350719b296b0b9d5479
Reviewed-on: https://chromium-review.googlesource.com/592720Reviewed-by: Cheng Wang <wangcheng@google.com>