Bug 1540760 - Enable neon for libyuv for aarch64; r=jya

Differential Revision: https://phabricator.services.mozilla.com/D27786

--HG--
extra : moz-landing-system : lando

media/libyuv/aarch64-windows-noneon.patch

@@ -1,14 +0,0 @@
-diff --git a/media/libyuv/libyuv/libyuv.gyp b/media/libyuv/libyuv/libyuv.gyp
-index 776510b..51ab531 100644
---- a/media/libyuv/libyuv/libyuv.gyp
-+++ b/media/libyuv/libyuv/libyuv.gyp
-@@ -33,7 +33,8 @@
-     'build_msa': 0,
-     'conditions': [
-        ['(target_arch == "armv7" or target_arch == "armv7s" or \
--       (target_arch == "arm" and arm_version >= 7) or target_arch == "arm64")\
-+       (target_arch == "arm" and arm_version >= 7) or \
-+       (OS != "win" and target_arch == "arm64")) \
-        and (arm_neon == 1 or arm_neon_optional == 1)', {
-          'build_neon': 1,
-        }],

media/libyuv/libyuv/libyuv.gyp

@@ -33,8 +33,7 @@
     'build_msa': 0,
     'conditions': [
        ['(target_arch == "armv7" or target_arch == "armv7s" or \
-       (target_arch == "arm" and arm_version >= 7) or \
-       (OS != "win" and target_arch == "arm64")) \
+       (target_arch == "arm" and arm_version >= 7) or target_arch == "arm64")\
        and (arm_neon == 1 or arm_neon_optional == 1)', {
          'build_neon': 1,
        }],

media/libyuv/update.py

@@ -52,8 +52,6 @@ def apply_patches(base):
         'allow_disabling_asm_avx2.patch',
         # add H444ToARGB() variant
         'add_H444ToARGB.patch',
-        # avoid selecting neon codepaths on AArch64 Windows
-        'aarch64-windows-noneon.patch',
         # fix the x86 mingw-clang build
         'bug_1491848.patch',
     ]