Move build to Android.bp

Bug: 181912301
Test: build app
Change-Id: Ia83dceb966528b1912aadd27ca6437ed2eabc5c7
diff --git a/AndroidManifest-empty.xml b/AndroidManifest-empty.xml
new file mode 100644
index 0000000..519f01d
--- /dev/null
+++ b/AndroidManifest-empty.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- Empty manifest used as base for merging our library dependencies -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.android.wallpaper">
+        <application
+            tools:replace="android:appComponentFactory"
+            android:appComponentFactory="androidx.core.app.CoreComponentFactory"/>
+</manifest>