anv: Add support for protected memory properties on anv_GetPhysicalDeviceProperties2()

VkPhysicalDeviceProtectedMemoryProperties structure is new on Vulkan 1.1.

Fixes Vulkan CTS CL#2849.

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
(cherry picked from commit 59a8e0db)