[LSC] Add LOCAL_LICENSE_KINDS to external/firebase-messaging

Added SPDX-license-identifier-Apache-2.0 to:
  Android.bp

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all

Exempt-From-Owner-Approval: janitorial work
Change-Id: I7a2cc93de77146636683c92aae0acf9e0077593f
diff --git a/Android.bp b/Android.bp
index ba5f7d4..9e79511 100644
--- a/Android.bp
+++ b/Android.bp
@@ -12,6 +12,23 @@
 // 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.
+package {
+    default_applicable_licenses: ["external_firebase-messaging_license"],
+}
+
+// Added automatically by a large-scale-change
+// See: http://go/android-license-faq
+license {
+    name: "external_firebase-messaging_license",
+    visibility: [":__subpackages__"],
+    license_kinds: [
+        "SPDX-license-identifier-Apache-2.0",
+    ],
+    license_text: [
+        "LICENSE",
+    ],
+}
+
 android_library_import {
     name: "firebase-common-aar",
     aars: ["libs/firebase-common-19.5.0.aar"],
@@ -82,4 +99,4 @@
     name: "firebase-encoders-jar",
     jars: ["libs/firebase-encoders-16.1.0.jar"],
     sdk_version: "system_current",
-}
\ No newline at end of file
+}