Roll Wuffs and buildroot (#9791)

DEPS

@@ -126,7 +126,7 @@ allowed_hosts = [
 ]
 
 deps = {
-  'src': 'https://github.com/flutter/buildroot.git' + '@' + 'c5a493b255a32f0946a70155592a5f43790dc890',
+  'src': 'https://github.com/flutter/buildroot.git' + '@' + '5a3c4ab16dc3bd0402b01ce0e613e754718b18c5',
 
    # Fuchsia compatibility
    #
@@ -390,7 +390,7 @@ deps = {
    Var('chromium_git') + '/webm/libwebp.git' + '@' + '0.6.0',
 
   'src/third_party/wuffs':
-   Var('fuchsia_git') + '/third_party/wuffs' + '@' + '11de618a6717c5c5d8c444b9c5ddf38d966b851d',
+   Var('skia_git') + '/external/github.com/google/wuffs.git' + '@' +  '6ad7d00a262e862549e4963b4a43d148a8285e50',
 
   'src/third_party/fontconfig/src':
    Var('chromium_git') + '/external/fontconfig.git' + '@' + 'c336b8471877371f0190ba06f7547c54e2b890ba',

ci/licenses_golden/licenses_third_party

-Signature: b37a2e81e4f74e4a3c20b6843115d41e
+Signature: b1d2f51063722465da09e691bf164c84
 
 UNUSED LICENSES:
 
@@ -516,6 +516,7 @@ FILE: ../../../third_party/vulkan/include/vulkan/vulkan_xcb.h
 FILE: ../../../third_party/vulkan/include/vulkan/vulkan_xlib.h
 FILE: ../../../third_party/vulkan/include/vulkan/vulkan_xlib_xrandr.h
 FILE: ../../../third_party/wuffs/cmd/commonflags/commonflags.go
+FILE: ../../../third_party/wuffs/cmd/ractool/main.go
 FILE: ../../../third_party/wuffs/cmd/wuffs-c/genlib.go
 FILE: ../../../third_party/wuffs/cmd/wuffs-c/main.go
 FILE: ../../../third_party/wuffs/cmd/wuffs-c/release.go
@@ -586,6 +587,9 @@ FILE: ../../../third_party/wuffs/lib/rac/example_test.go
 FILE: ../../../third_party/wuffs/lib/rac/rac.go
 FILE: ../../../third_party/wuffs/lib/rac/writer.go
 FILE: ../../../third_party/wuffs/lib/rac/writer_test.go
+FILE: ../../../third_party/wuffs/lib/raczlib/raczlib.go
+FILE: ../../../third_party/wuffs/lib/raczlib/writer.go
+FILE: ../../../third_party/wuffs/lib/zlibcut/example_test.go
 FILE: ../../../third_party/wuffs/lib/zlibcut/zlibcut.go
 FILE: ../../../third_party/wuffs/lib/zlibcut/zlibcut_test.go
 FILE: ../../../third_party/wuffs/release/c/wuffs-unsupported-snapshot.c