[PATCH v2 2/2] perf tests top: Make the test exclusive

[Ian Rogers]

With sufficient tests running the load causes the top test fails with:
```
123: perf top tests                                                  : FAILED!
 --- start ---
test child forked, pid 629856
Basic perf top test
Basic perf top test [Failed: no sample percentage found]
 ---- end(-1) ----
```
Mark the test exclusive to avoid flakes.

Fixes: 75e961730b9e ("perf tests top: Add basic perf top coverage test")
Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
v2; Tweak commit message  log lines starting "---".
---
 tools/perf/tests/shell/top.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/top.sh b/tools/perf/tests/shell/top.sh
index 768ebcf7a89c..ad7fccd09025 100755
--- a/tools/perf/tests/shell/top.sh
+++ b/tools/perf/tests/shell/top.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# perf top tests
+# perf top tests (exclusive)
 # SPDX-License-Identifier: GPL-2.0
 
 set -e
-- 
2.52.0.223.gf5cc29aaa4-goog