Fixed lint errors for license.

PiperOrigin-RevId: 543822678

Author: banaag

validator/cpp/engine/BUILD

@@ -1,6 +1,7 @@
 load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test")
 load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
 load("embed_data.bzl", "embed_data")
+load("//tools/build_defs/license:license.bzl", "license")
 
 # Requirements:
 # clang with c++17 support.
@@ -14,7 +15,15 @@ load("embed_data.bzl", "embed_data")
 #
 # bazel test --cxxopt='-std=c++17' validator_test
 
-package(default_visibility = ["//visibility:public"])
+package(
+    default_applicable_licenses = [":license"],
+    default_visibility = ["//visibility:public"],
+)
+
+license(
+    name = "license",
+    package_name = "ampvalidator",
+)
 
 licenses(["notice"])