message: Change test size
  Summary:
  Fixes the buildbot
  Ref T16509
  Test Plan: All tests pass
  Reviewers: #tensorflow, jakeh, hakons, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved
  Maniphest Tasks: T16509
diff: @@ -226,7 +226,7 @@ class FrontendAttributesTest(test_util.TensorFlowTestCase):
  outputs = {}
  with ops.device("/device:IPU:0"):
  with ipu.scopes.partials_type(np.float32):
  - pa, pb, fd = _createInputs([2, 2], np.float16)
  + pa, pb, fd = _createInputs([64, 64], np.float16)
  output = math_ops.matmul(pa, pb)
  outputs[output] = ("poplin::ConvPartial*<half,float", fd)
  with ipu.scopes.partials_type(np.float16):
  