perf test: Convert time to tsc test to test case.

Migration toward kunit style test cases.
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Daniel Latypov <dlatypov@google.com>
Cc: David Gow <davidgow@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20211104064208.3156807-18-irogers@google.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/perf-time-to-tsc.c

@@ -198,8 +198,13 @@ static bool test__tsc_is_supported(void)
 #endif
 }
 
+static struct test_case perf_time_to_tsc_tests[] = {
+	TEST_CASE("Convert perf time to TSC", perf_time_to_tsc),
+	{ .name = NULL, }
+};
+
 struct test_suite suite__perf_time_to_tsc = {
 	.desc = "Convert perf time to TSC",
-	.func = test__perf_time_to_tsc,
+	.test_cases = perf_time_to_tsc_tests,
 	.is_supported = test__tsc_is_supported,
 };