Roll src/third_party/dav1d/libdav1d/ 47daa4df3..5fe20ec7d (10 commits)

https://chromium.googlesource.com/external/github.com/videolan/dav1d.git/+log/47daa4df3387..5fe20ec7dd89

$ git log 47daa4df3..5fe20ec7d --date=short --no-merges --format='%ad %ae %s'
2020-07-01 gramner x86: Split AVX2 and AVX-512 mc asm into separate files
2020-06-30 gramner Fix compilation with nasm 2.15
2020-06-29 epirat07 meson: Workaround missing aarch64 normalisation
2020-06-28 code CLI: Fix help text
2020-06-29 gramner x86: Add minor mc 8-tap optimizations
2020-06-24 gramner CI: Fix PIC test on 32-bit x86
2020-06-25 gramner x86: Fix 32-bit build with PIC enabled
2020-06-24 gramner x86inc: Improve warnings for use of unsupported instructions
2020-06-24 gramner x86inc: Add missing 'blsr' BMI1 instruction
2020-06-09 gramner x86inc: Add template defines for EVEX broadcasts

Created with:
  roll-dep src/third_party/dav1d/libdav1d

TBR=tguilbert

Bug: 1100411
Change-Id: Ib303e8ec8da37a5f85191b73cb179d662e64dbbd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2278132Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#784538}

DEPS

@@ -773,7 +773,7 @@ deps = {
     Var('chromium_git') + '/angle/angle.git' + '@' +  Var('angle_revision'),
 
   'src/third_party/dav1d/libdav1d':
-    Var('chromium_git') + '/external/github.com/videolan/dav1d.git' + '@' + '47daa4df3387c1529536243db80b81f3878cbf76',
+    Var('chromium_git') + '/external/github.com/videolan/dav1d.git' + '@' + '5fe20ec7dd89c88453a61cd47d5d01e49d6cc6c2',
 
   'src/third_party/dawn':
     Var('dawn_git') + '/dawn.git' + '@' +  Var('dawn_revision'),

third_party/dav1d/dav1d_generated.gni

@@ -19,7 +19,8 @@ x86_asm_sources = [
   "libdav1d/src/x86/loopfilter_ssse3.asm",
   "libdav1d/src/x86/looprestoration.asm",
   "libdav1d/src/x86/looprestoration_ssse3.asm",
-  "libdav1d/src/x86/mc.asm",
+  "libdav1d/src/x86/mc_avx2.asm",
+  "libdav1d/src/x86/mc_avx512.asm",
   "libdav1d/src/x86/mc_sse.asm",
   "libdav1d/src/x86/msac.asm",
 ]