Split up split test to collect artifacts correctly (#5785)

Summary:
Running two sets of test with the same name produces artefacts within the same directory,
which causes problems when collating the tests to folders.

Change-Id: I5da1b20ead1419c7593247aeb23ea560f33a575b

Pull Request resolved: #5785

Reviewed By: mergennachin

Differential Revision: D63808459

Pulled By: digantdesai

fbshipit-source-id: bf24c7c2c24fcc9f4955f1df7207449309eef865

Author: per

backends/arm/test/ops/test_split.py

@@ -124,8 +124,11 @@ def test_split_with_sizes_tosa_MI(self, test_data: test_data_t):
         self._test_split_tosa_MI_pipeline(self.SplitWithSizes(), test_data)
 
     @parameterized.expand(Split.test_data)
-    def test_split_n_out_tosa_MI(self, test_data: test_data_t):
+    def test_split_one_out_tosa_MI(self, test_data: test_data_t):
         self._test_split_tosa_MI_pipeline(self.SplitSingleOut(), test_data)
+
+    @parameterized.expand(Split.test_data)
+    def test_split_two_out_tosa_MI(self, test_data: test_data_t):
         self._test_split_tosa_MI_pipeline(self.SplitTwoOut(), test_data)
 
     @parameterized.expand(Split.test_data)