Move WallpaperPicker to /product am: 14d114e6b0 am: f9dae50b1d am: b44e4632ac am: 840552072a

Change-Id: Ic2974fb17889732c6d6a6f8cdcc84570ca460a10
diff --git a/Android.bp b/Android.bp
index 5a110c9..eb98a8d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -21,6 +21,7 @@
     static_libs: ["android-support-v4"],
     srcs: ["src/**/*.java"],
     resource_dirs: ["res"],
+    product_specific: true,
     sdk_version: "current",
     product_specific: true,
 }