shader: implement RDNA2 DS forward lane permute

Co-authored-by: shadowbeat070 <70843316+shadowbeat070@users.noreply.github.com>

src/graphics/shader/recompiler/backend/spirv/SpirvEmitter.cpp

@@ -294,6 +294,7 @@ Emitter::SpirvRequirements Emitter::AnalyzeProgramRequirements(const IR::Program
 					break;
 				}
 				case IR::ValueOpcode::SwizzleU32:
+				case IR::ValueOpcode::PermuteU32:
 				case IR::ValueOpcode::BpermuteU32: {
 					requirements.subgroup_ballot              = true;
 					requirements.subgroup_shuffle             = true;