spirv: Add support for SPV_EXT_physical_storage_buffer

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
diff --git a/src/compiler/shader_info.h b/src/compiler/shader_info.h
index 7af36a6..c3dbe76 100644
--- a/src/compiler/shader_info.h
+++ b/src/compiler/shader_info.h
@@ -51,6 +51,7 @@
    bool kernel;
    bool min_lod;
    bool multiview;
+   bool physical_storage_buffer_address;
    bool post_depth_coverage;
    bool runtime_descriptor_array;
    bool shader_viewport_index_layer;