Description: Yakkety and lower workaround for "unaligned opcodes"

--- a/third_party/libvpx/BUILD.gn
+++ b/third_party/libvpx/BUILD.gn
@@ -303,6 +303,8 @@ static_library("libvpx") {
       sources = libvpx_srcs_arm
     }
   } else if (current_cpu == "arm64") {
+    configs -= [ "//build/config/compiler:default_symbols" ]
+    configs += [ "//build/config/compiler:no_symbols" ]
     sources = libvpx_srcs_arm64
   }
 
