message: Disable mkl_eager_op_rewrite_test for mac
  Building is failing with:
  ld: illegal thread local variable reference to regular symbol __ZN9grpc_core7ExecCtx9exec_ctx_E for architecture x86_64
diff: @@ -360,6 +360,9 @@ cc_library(
  tf_cc_test_mkl(
  name = "mkl_eager_op_rewrite_test",
  srcs = ["mkl_eager_op_rewrite_test.cc"],
  + tags = [
  + "nomac",
  + ],
  deps = [
  ":execute",
  ":mkl_eager_op_rewrite",
  