Make Launcher3 privileged module
am: 7810d4bfa9

Change-Id: Id58c4dab888e8a97ccab39b1934515e3f8bb0db0
diff --git a/proguard.flags b/proguard.flags
index c5e9db1..ad6f727 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -82,3 +82,11 @@
   *;
 }
 
+# Proguard will strip methods required for talkback to properly scroll to
+# next row when focus is on the last item of last row when using a RecyclerView
+# Keep optimized and shrunk proguard to prevent issues like this when using
+# support jar.
+-keep,allowoptimization,allowshrinking class android.support.** {
+  *;
+}
+