lvp: 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>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30791>

src/gallium/frontends/lavapipe/lvp_device.c

@@ -161,6 +161,7 @@ static const struct vk_device_extension_table lvp_device_extensions_supported =
    .KHR_shader_integer_dot_product        = true,
    .KHR_shader_maximal_reconvergence      = true,
    .KHR_shader_non_semantic_info          = true,
+   .KHR_shader_relaxed_extended_instruction = true,
    .KHR_shader_subgroup_extended_types    = true,
    .KHR_shader_terminate_invocation       = true,
    .KHR_spirv_1_4                         = true,
@@ -720,6 +721,9 @@ lvp_get_features(const struct lvp_physical_device *pdevice,
       /* VK_EXT_swapchain_maintenance1 */
       .swapchainMaintenance1 = true,
 #endif
+
+      /* VK_KHR_shader_relaxed_extended_instruction */
+      .shaderRelaxedExtendedInstruction = true,
    };
 }