Add missing load() for cc_library()

Author: EdSchouten

starlark/bazel_tools/tools/cpp/BUILD.bazel

@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+load("@rules_cc//cc:cc_library.bzl", "cc_library")
 
 package(default_visibility = ["//visibility:public"])