a/vk: Disable naming of VkInstance objects
Mesa as of this patch doesn't currectly support setting debug names on
VkInstance. And the Vulkan loader had a bug before 1.3.261 that would cause
crashes if trying to set the name on VkInstance.
https://github.com/KhronosGroup/Vulkan-Loader/commit/faeb94c2df372557087c3ec77a52b772c0098b1f