libvulkan: reduce log level for swapchain usage errors am: 42a9eecb23
am: b3f21e4359

* commit 'b3f21e43595d24066111635a0ca79fffd5e8f297':
  libvulkan: reduce log level for swapchain usage errors

Change-Id: I11957e49a5022eca6d994af6929a7fbe237fa567