message: Update LSTM cell function annotations.
  These annotations are not final and subject to change if/when we decide to make these interfaces more standard and recommended for use to non-lingvo users.
diff: @@ -31,9 +31,9 @@ limitations under the License.
  namespace mlir {
  namespace TFL {
  -constexpr char kLstmCellSimple[] = "LSTMCellSimple";
  +constexpr char kLstmCellSimple[] = "lingvo.LSTMCellSimple";
  constexpr char kLayerNormalizedLstmCellSimple[] =
  - "LayerNormalizedLstmCellSimple";
  + "lingvo.LayerNormalizedLstmCellSimple";
  // A utility class that enables the conversion of the LSTMCellSimple composite
  // op into a fused TFL LSTM op. The fused op is contained within a FuncOp
  