Set correct uid when loading app icon in data usage UI.

work profile apps belongs to a different user. Set the correct uid when
loading the icon so the work profile badge is displayed.

Change-Id: I2ed27d6b83c1b42961500dc8d63475bf1f7eabcd
Fix: 38372681
Test: make RunSettingsRoboTests

src/com/android/settings/applications/PackageManagerWrapper.java

@@ -111,4 +111,6 @@ public interface PackageManagerWrapper {
      */
     void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int flags,
             int userId);
+
+    int getPackageUidAsUser(String pkg, int userId) throws PackageManager.NameNotFoundException;
 }