Skip convnets benchmark in rocm CI (pytorch#17331)

Summary:
random coredump
Pull Request resolved: pytorch#17331

Differential Revision: D14162018

Pulled By: bddppq

fbshipit-source-id: 3ed15a79b7bca2498c50f6af80cbd6be7229dea8

Author: bddppq

caffe2/python/convnet_benchmarks_test.py

@@ -3,7 +3,8 @@
 from caffe2.python import test_util, workspace
 
 
-@unittest.skipIf(not workspace.has_gpu_support, "no gpu")
+# TODO: investigate why this randomly core dump in ROCM CI
+@unittest.skipIf(not workspace.has_cuda_support, "no cuda gpu")
 class TestConvnetBenchmarks(test_util.TestCase):
     def testConvnetBenchmarks(self):
         all_args = [