libvulkan: reduce log level for swapchain usage errors am: 42a9eecb23 am: efe5eeace0
am: 88cb9b2095

* commit '88cb9b2095d38bbd1dd47728d28085f3ec0cc69b':
  libvulkan: reduce log level for swapchain usage errors

Change-Id: Ia917097cf475d049beab52b266ac963a8fb5fef3