Report "SKIPPED" for unsupported tests.

  - Instead of reporting PASS for unsupported tests, use GTEST_SKIP to
  skip the tests at runtime.

Bug: 113356629
Test: mm
Test: VTS tests on HVX driver
Change-Id: I6a870b61809e58490e66dd4ea36ddeb64fc68a07
diff --git a/neuralnetworks/1.0/vts/functional/GeneratedTestHarness.cpp b/neuralnetworks/1.0/vts/functional/GeneratedTestHarness.cpp
index 3b4eb21..af0a03f 100644
--- a/neuralnetworks/1.0/vts/functional/GeneratedTestHarness.cpp
+++ b/neuralnetworks/1.0/vts/functional/GeneratedTestHarness.cpp
@@ -293,7 +293,7 @@
         std::cout << "[          ]   Early termination of test because vendor service cannot "
                      "prepare model that it does not support."
                   << std::endl;
-        return;
+        GTEST_SKIP();
     }
     EXPECT_EQ(ErrorStatus::NONE, prepareReturnStatus);
     ASSERT_NE(nullptr, preparedModel.get());
@@ -340,7 +340,7 @@
         std::cout << "[          ]   Early termination of test because vendor service cannot "
                      "prepare model that it does not support."
                   << std::endl;
-        return;
+        GTEST_SKIP();
     }
     EXPECT_EQ(ErrorStatus::NONE, prepareReturnStatus);
     ASSERT_NE(nullptr, preparedModel.get());
@@ -387,7 +387,7 @@
         std::cout << "[          ]   Early termination of test because vendor service cannot "
                      "prepare model that it does not support."
                   << std::endl;
-        return;
+        GTEST_SKIP();
     }
     EXPECT_EQ(ErrorStatus::NONE, prepareReturnStatus);
     ASSERT_NE(nullptr, preparedModel.get());