Let's enhance

Add mipmap-* launcher icon assets. Remove drawable-* based assests.
Change over reference to mipmap icon.

Bug: 6718166
Change-Id: I01f84a03fd1be0ced9cce9cff322a5fe02820075
diff --git a/java/AndroidManifest.xml b/java/AndroidManifest.xml
index 3e80de2..8ffa29d 100644
--- a/java/AndroidManifest.xml
+++ b/java/AndroidManifest.xml
@@ -26,7 +26,7 @@
     <uses-permission android:name="android.permission.READ_CONTACTS" />
 
     <application android:label="@string/aosp_android_keyboard_ime_name"
-            android:icon="@drawable/ic_ime_settings"
+            android:icon="@mipmap/ic_ime_settings"
             android:backupAgent="BackupAgent"
             android:killAfterRestore="false"
             android:supportsRtl="true">