Update args.gn

Author: aaaapai

out/Android-arm64/args.gn

@@ -159,3 +159,17 @@ angle_force_context_check_every_call = false
 use_lld = true
 
 angle_use_android_tls_slot = true
+
+use_custom_libcxx_for_host = false
+optimize_for_fuzzing = false
+use_custom_libcxx = true
+use_rtti = false
+use_dummy_lastchange = false
+enable_cpp_api_from_rust = true
+enable_rust_clippy_eager = false
+enable_rust = true
+
+use_thin_lto = false
+
+toolchain_supports_rust_thin_lto = false
+rust_lto = "fat"