radv: enable VK_KHR_shader_relaxed_extended_instruction

The extension only affects non semantic instructions that need no
handling in the backend compiler.

Signed-off-by: Rohan Garg <rohan.garg@intel.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30791>

src/amd/vulkan/radv_physical_device.c

@@ -559,6 +559,7 @@ radv_physical_device_get_supported_extensions(const struct radv_physical_device
       .KHR_shader_maximal_reconvergence = true,
       .KHR_shader_non_semantic_info = true,
       .KHR_shader_quad_control = true,
+      .KHR_shader_relaxed_extended_instruction = true,
       .KHR_shader_subgroup_extended_types = true,
       .KHR_shader_subgroup_rotate = true,
       .KHR_shader_subgroup_uniform_control_flow = true,
@@ -1241,6 +1242,9 @@ radv_physical_device_get_features(const struct radv_physical_device *pdev, struc
 
       /* VK_KHR_pipeline_binary */
       .pipelineBinaries = true,
+
+      /* VK_KHR_shader_relaxed_extended_instruction */
+      .shaderRelaxedExtendedInstruction = true,
    };
 }