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

* commit 'efe5eeace0fb6c1681ff8db1f40f6f5df8202931':
  libvulkan: reduce log level for swapchain usage errors

Change-Id: Ia2acf2de482efd244d7170e5c9187b1b1ab4e41e