Fix init-self compiler warnings (#493)

Fix a few errors caused by trying to initialize a class member
with itself. These errors can turn into errors if you compile
with `-Winit-self`.

tools/library/include/cutlass/library/library.h

@@ -654,7 +654,7 @@ struct TrmmDescription : public OperationDescription {
     TensorDescription const &A = TensorDescription(),
     SideMode side_mode = SideMode::kInvalid,
     FillMode fill_mode = FillMode::kInvalid,
-    DiagType daig_type = DiagType::kInvalid,
+    DiagType diag_type = DiagType::kInvalid,
     TensorDescription const &B = TensorDescription(),
     TensorDescription const &D = TensorDescription(),
     NumericTypeID element_epilogue = NumericTypeID::kInvalid,