Default icon is shown after uninstalling updated priv-app

If updated pre-installed app is moved from "/system/app" to
"/system/priv-app" at FOTA, PackageManager does not update its
resource path correctly. This patch fixes it.

Change-Id: Iac793bcb8fd7c5bfbafd1876640b534c6da5dddf
Apk which is not on "/system/priv-app" still has privileged flag.

When an app is moved from "/system/priv-app" it still has the
privileged flag.

Change-Id: I7713382db34697f7b68283dbbbd25a1349cbecdb