Use new UnsupportedAppUsage annotation.

Existing annotations in libcore/ and frameworks/ will deleted after the migration. This also means that any java library that compiles @UnsupportedAppUsage requires a direct dependency on "unsupportedappusage" java_library.

Bug: 145132366
Test: m && diff unsupportedappusage_index.csv \
      git diff HEAD^ HEAD | grep '^[+-][^+-]' | grep -v '.import'
Merged-In: I853372f3c6fef905553bb31be4f1bb48df735f7a
Change-Id: I853372f3c6fef905553bb31be4f1bb48df735f7a
diff --git a/telephony/common/com/google/android/mms/pdu/Base64.java b/telephony/common/com/google/android/mms/pdu/Base64.java
index 483fa7f..0d6a46a 100644
--- a/telephony/common/com/google/android/mms/pdu/Base64.java
+++ b/telephony/common/com/google/android/mms/pdu/Base64.java
@@ -17,7 +17,7 @@
 
 package com.google.android.mms.pdu;
 
-import dalvik.annotation.compat.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 
 public class Base64 {
     /**