[LSC] Add LOCAL_LICENSE_KINDS to frameworks/libs/net

Added SPDX-license-identifier-Apache-2.0 to:
  common/native/nettestutils/Android.bp

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all
Change-Id: If5fcd4735fe82f336227626a443bba1d74201722

staticlibs/native/nettestutils/Android.bp

@@ -12,6 +12,10 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
 cc_library_static {
     name: "libnettestutils",
     export_include_dirs: ["include"],