Use android.compat.annotation.UnsupportedAppUsage everywhere.

The new annotation replaces existing two annotations in libcore/ and frameworks/base/. This helps avoid human confusion and allows better and correct tool support.

Bug: 145132366
Test: m
Change-Id: I9078b124ddf0273250c645fe17f27088092c8b18
diff --git a/ApiDocs.bp b/ApiDocs.bp
index e373db6..c40004c 100644
--- a/ApiDocs.bp
+++ b/ApiDocs.bp
@@ -121,8 +121,10 @@
 
 doc_defaults {
     name: "framework-docs-default",
-    libs: framework_docs_only_libs +
-        ["stub-annotations"],
+    libs: framework_docs_only_libs + [
+        "stub-annotations",
+        "unsupportedappusage",
+    ],
     html_dirs: [
         "docs/html",
     ],