testcases: templates: kselftest: prefix timesync-off

Prefix the test that stops systemd-timesyncd before kselftest suites are
runned.

Reported-by: Benjamin Copeland <benjamin.copeland@linaro.org>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>

lava_test_plans/testcases/templates/kselftest.yaml.jinja2

@@ -36,7 +36,7 @@
         run:
           steps:
           - systemctl stop systemd-timesyncd || true
-      name: timesync-off
+      name: kselftest-timesync-off
       path: inline/timesync-off.yaml
 {% for testname in testnames %}
     - repository: {{ TEST_DEFINITIONS_REPOSITORY }}