Fix FP32 Accum OPA case in ExecTest

Author: VladM1076

tools/clang/unittests/HLSLExec/ExecutionTest.cpp

@@ -13501,6 +13501,11 @@ float4 ps_main() : SV_Target {
       SrcEltSize = 4;  // FP32
       DestEltSize = 2; // FP16
       break;
+    case D3D12_LINEAR_ALGEBRA_DATATYPE_FLOAT32:
+      DestInfo.DestDataType = D3D12_LINEAR_ALGEBRA_DATATYPE_FLOAT32;
+      SrcEltSize = 4; // FP32
+      DestEltSize = 4; // FP32
+      break;
     case D3D12_LINEAR_ALGEBRA_DATATYPE_FLOAT_E4M3:
       DestInfo.DestDataType = D3D12_LINEAR_ALGEBRA_DATATYPE_FLOAT_E4M3;
       SrcEltSize = 4;  // FP32