Add app icon for SpaLib Gallery App

Bug: 235727273
Test: Manual with Gallery App
Change-Id: Ib9051cc9bad1e0f9e7956ba2c18ba52ee35fafca
diff --git a/packages/SettingsLib/Spa/gallery/AndroidManifest.xml b/packages/SettingsLib/Spa/gallery/AndroidManifest.xml
index 914a45b..b5be7cd 100644
--- a/packages/SettingsLib/Spa/gallery/AndroidManifest.xml
+++ b/packages/SettingsLib/Spa/gallery/AndroidManifest.xml
@@ -18,7 +18,8 @@
     package="com.android.settingslib.spa.gallery">
 
     <application
-        android:label="@string/app_name"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_label"
         android:supportsRtl="true">
         <activity
             android:name="com.android.settingslib.spa.gallery.MainActivity"