Fix color preview icons in custom theme

Use the correct package for color preview QS icons which
are now in the android package.

Change-Id: I0b03f7cb4177911f322a29eaeebcc2a3216a8a22
diff --git a/src/com/android/customization/model/theme/custom/ColorOptionsProvider.java b/src/com/android/customization/model/theme/custom/ColorOptionsProvider.java
index b9b35dc..dd61f00 100644
--- a/src/com/android/customization/model/theme/custom/ColorOptionsProvider.java
+++ b/src/com/android/customization/model/theme/custom/ColorOptionsProvider.java
@@ -20,6 +20,7 @@
 import static com.android.customization.model.ResourceConstants.ANDROID_PACKAGE;
 import static com.android.customization.model.ResourceConstants.OVERLAY_CATEGORY_ANDROID_THEME;
 import static com.android.customization.model.ResourceConstants.OVERLAY_CATEGORY_COLOR;
+import static com.android.customization.model.ResourceConstants.OVERLAY_CATEGORY_ICON_ANDROID;
 import static com.android.customization.model.ResourceConstants.OVERLAY_CATEGORY_ICON_SYSUI;
 import static com.android.customization.model.ResourceConstants.OVERLAY_CATEGORY_SHAPE;
 import static com.android.customization.model.ResourceConstants.PATH_SIZE;
@@ -73,7 +74,7 @@
     protected void loadOptions() {
         List<Drawable> previewIcons = new ArrayList<>();
         String iconPackage =
-                mCustomThemeManager.getOverlayPackages().get(OVERLAY_CATEGORY_ICON_SYSUI);
+                mCustomThemeManager.getOverlayPackages().get(OVERLAY_CATEGORY_ICON_ANDROID);
         if (TextUtils.isEmpty(iconPackage)) {
             iconPackage = SYSUI_PACKAGE;
         }