Add h5py dependency to setup.py.

It used to be transitively brought in by keras_applications but we no longer depend on that.

PiperOrigin-RevId: 285864272
Change-Id: Iae2de4f9b8686602d661cff716ff592788b43b09

tensorflow/tools/pip_package/setup.py

@@ -56,6 +56,7 @@ REQUIRED_PACKAGES = [
     'enum34 >= 1.1.6;python_version<"3.4"',
     'gast == 0.2.2',
     'google_pasta >= 0.1.8',
+    'h5py >= 2.10.0, 2.11.0',
     'keras_preprocessing >= 1.1.0',
     'numpy >= 1.16.0, < 2.0',
     'opt_einsum >= 2.3.2',