panvk/v10+: Advertise nullDescriptor support

Advertise support for VK_EXT_robustness2 with only the nullDescriptor
feature enabled.

Except for index buffers, the same implementation should work for v9 as
well.

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35609>

src/panfrost/vulkan/panvk_vX_physical_device.c

@@ -150,6 +150,7 @@ panvk_per_arch(get_physical_device_extensions)(
       .EXT_primitive_topology_list_restart = true,
       .EXT_provoking_vertex = true,
       .EXT_queue_family_foreign = true,
+      .EXT_robustness2 = PAN_ARCH >= 10,
       .EXT_sampler_filter_minmax = PAN_ARCH >= 10,
       .EXT_scalar_block_layout = true,
       .EXT_separate_stencil_usage = true,
@@ -425,6 +426,11 @@ panvk_per_arch(get_physical_device_features)(
       /* VK_EXT_pipeline_robustness */
       .pipelineRobustness = true,
 
+      /* VK_EXT_robustness2 */
+      .robustBufferAccess2 = false,
+      .robustImageAccess2 = false,
+      .nullDescriptor = PAN_ARCH >= 10,
+
       /* VK_KHR_shader_clock */
       .shaderSubgroupClock = device->kmod.props.gpu_can_query_timestamp,
       .shaderDeviceClock = device->kmod.props.gpu_can_query_timestamp,
@@ -870,6 +876,10 @@ panvk_per_arch(get_physical_device_properties)(
       .uniformTexelBufferOffsetAlignmentBytes = 64,
       .uniformTexelBufferOffsetSingleTexelAlignment = false,
 
+      /* VK_EXT_robustness2 */
+      .robustStorageBufferAccessSizeAlignment = 1,
+      .robustUniformBufferAccessSizeAlignment = 1,
+
       /* VK_KHR_maintenance4 */
       .maxBufferSize = 1 << 30,