shader: link scalar leaf calls only for SWAPPC programs

Co-authored-by: Behzad <behzadkhan1736@gmail.com>

src/graphics/shader/recompiler/ir/ShaderIR.h

@@ -590,6 +590,7 @@ struct ResourcePlan {
 	std::vector<ResourceBlock>          control_flow;
 	std::vector<SrtRead>                srt_reads;
 	bool                                requires_specialization_memory = false;
+	std::vector<std::pair<uint64_t, uint64_t>> source_reads;
 	bool                                capture_specialization_reads = false;
 	bool                                srt_plan_complete          = false;
 	bool                                resource_tracking_complete = false;