Rename ART release APEX to com.android.art.

Test: See https://r.android.com/1457217
Bug: 169639321
Change-Id: Idd7c667e8184518967892dd98d10ae7c3604efde
Merged-In: Idd7c667e8184518967892dd98d10ae7c3604efde

apex/Android.bp

@@ -35,16 +35,16 @@ filegroup {
 }
 
 filegroup {
-  name: "com.android.art.debug-file_contexts",
+  name: "com.android.art-file_contexts",
   srcs: [
-    "com.android.art.debug-file_contexts",
+    "com.android.art-file_contexts",
   ],
 }
 
 filegroup {
-  name: "com.android.art.release-file_contexts",
+  name: "com.android.art.debug-file_contexts",
   srcs: [
-    "com.android.art.release-file_contexts",
+    "com.android.art.debug-file_contexts",
   ],
 }