vulkaninfo: Fix VkPhysicalDeviceHostImageCopyPropertiesEXT

vulkaninfo: Fix VkPhysicalDeviceHostImageCopyPropertiesEXT

This struct has pointers to arrays which must be allocated by the user
before they can be filled out. Thus, to be able to query the properties,
vulkaninfo must call vkGetPhysicalDeviceProperties2 twice. Since there is
not an easy way to add this to the code generator, it is instead excluded
from the main pNext generation and hand written.