Implement front-end APIs for announcements.

Bug: 68045105
Test: instrumentation (none added)
Change-Id: I602e8bb0c40516a732d606f745c8f7721583155f
diff --git a/Android.bp b/Android.bp
index d1332bb..c571c802 100644
--- a/Android.bp
+++ b/Android.bp
@@ -177,6 +177,8 @@
         "core/java/android/hardware/location/IContextHubClientCallback.aidl",
         "core/java/android/hardware/location/IContextHubService.aidl",
         "core/java/android/hardware/location/IContextHubTransactionCallback.aidl",
+        "core/java/android/hardware/radio/IAnnouncementListener.aidl",
+        "core/java/android/hardware/radio/ICloseHandle.aidl",
         "core/java/android/hardware/radio/IRadioService.aidl",
         "core/java/android/hardware/radio/ITuner.aidl",
         "core/java/android/hardware/radio/ITunerCallback.aidl",