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

* commit '42a9eecb23c0b72bbee1eb2ef6b0d6586159d1c3':
  libvulkan: reduce log level for swapchain usage errors

Change-Id: I8b053f14678f9e03497ac2b621e117df581d9779