panvk: do not enable extension without required feature

The Vulkan spec states that if VK_KHR_shader_clock is supported,
shaderSubgroupClock is a required feature. So let's not enable that
extension unless we can...

Fixes: e9c2c32409 ("panvk: enable VK_KHR_shader_clock")
Reviewed-by: Christoph Pillmayer <christoph.pillmayer@arm.com>
Reviewed-by: Ashley Smith <ashley.smith@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
(cherry picked from commit c8ae72f51d)

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41269>

.pick_status.json

@@ -4034,7 +4034,7 @@
         "description": "panvk: do not enable extension without required feature",
         "nominated": true,
         "nomination_type": 2,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": "e9c2c3240949196a5584ed1c54df4b9bb75dcbf3",
         "notes": null

src/panfrost/ci/panfrost-g52-fails.txt

@@ -349,7 +349,6 @@ dEQP-VK.pipeline.pipeline_library.empty_fs.masked_samples,Fail
 # New failures with VKCTS 1.4.4.0
 dEQP-VK.binding_model.unused_invalid_descriptor.write.invalid.combined_image_sampler,Crash
 dEQP-VK.binding_model.unused_invalid_descriptor.write.invalid.sampled_image,Crash
-dEQP-VK.info.device_mandatory_features,Fail
 dEQP-VK.pipeline.fast_linked_library.vertex_input.misc.unbound_input,Crash
 dEQP-VK.pipeline.fast_linked_library.vertex_input.misc.unbound_input_dynamic,Crash
 dEQP-VK.pipeline.monolithic.vertex_input.misc.unbound_input,Crash

src/panfrost/vulkan/panvk_vX_physical_device.c

@@ -95,7 +95,7 @@ panvk_per_arch(get_physical_device_extensions)(
       .KHR_sampler_mirror_clamp_to_edge = true,
       .KHR_sampler_ycbcr_conversion = true,
       .KHR_separate_depth_stencil_layouts = true,
-      .KHR_shader_clock = true,
+      .KHR_shader_clock = device->kmod.dev->props.gpu_can_query_timestamp,
       .KHR_shader_draw_parameters = true,
       .KHR_shader_expect_assume = true,
       .KHR_shader_float_controls = true,