We enable VK_EXT_pipeline_protected_access only if
anv_physical_device::has_protected_contexts. Therefore we should do the
same for vk_features::pipelineProtectedAccess.
Fixes: 0b5408f ("anv: expose VK_EXT_pipeline_protected_access")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Rohan Garg <rohan.garg@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32206>