Remove the usage of TF private API gen_sparse_ops sparse_cross_hashed from Keras.

PiperOrigin-RevId: 338705909
Change-Id: Ie543c0cbf67e8112c94abd59c63ea5ccc06c0761
diff --git a/tensorflow/python/keras/layers/preprocessing/hashing.py b/tensorflow/python/keras/layers/preprocessing/hashing.py
index ea8d6f0..071d8c7 100644
--- a/tensorflow/python/keras/layers/preprocessing/hashing.py
+++ b/tensorflow/python/keras/layers/preprocessing/hashing.py
@@ -213,7 +213,7 @@
     indices = [sp_inp.indices for sp_inp in sparse_inputs]
     values = [sp_inp.values for sp_inp in sparse_inputs]
     shapes = [sp_inp.dense_shape for sp_inp in sparse_inputs]
-    indices_out, values_out, shapes_out = gen_sparse_ops.sparse_cross_hashed(
+    indices_out, values_out, shapes_out = gen_sparse_ops.SparseCrossHashed(
         indices=indices,
         values=values,
         shapes=shapes,