Issue #2101 - Part 3: Update libyuv

Updated to version 1861, git revision 88b050f337cc0ca2a51800fe7bf4737222c87344 from
https://chromium.googlesource.com/libyuv/libyuv/

media/libyuv/infra/config/project.cfg

@@ -0,0 +1,15 @@
+# Auto-generated by lucicfg.
+# Do not modify manually.
+#
+# For the schema of this file, see ProjectCfg message:
+#   https://luci-config.appspot.com/schemas/projects:project.cfg
+
+name: "libyuv"
+access: "group:all"
+lucicfg {
+  version: "1.32.1"
+  package_dir: "."
+  config_dir: "."
+  entry_point: "main.star"
+  experiments: "crbug.com/1182002"
+}