Change launcher icons to MaskableIconDrawable
Test: manual test

b/34853793

Change-Id: I3376c03e84a0a9d94190b930f16596b3e48e9a9d
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 0de7a4e..693d3a6 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -83,7 +83,7 @@
     <uses-permission android:name="android.permission.DELETE_PACKAGES"/>
 
     <application android:label="@string/settings_label"
-            android:icon="@mipmap/ic_launcher_settings"
+            android:icon="@drawable/ic_launcher_settings"
             android:taskAffinity=""
             android:theme="@style/Theme.Settings"
             android:hardwareAccelerated="true"