test-configs.yaml: Run landlock on sona Chromebook

Queue size for sona always low, so it should not cause
any issues to run additional test.
Also as landlock test author suggested, it will be great to
have results of test on x86.

Signed-off-by: Denys Fedoryshchenko <[email protected]>

Author: nuclearcat

config/core/test-configs.yaml

@@ -2272,6 +2272,7 @@ test_configs:
       - cros-ec
       - kselftest-alsa
       - kselftest-cpufreq
+      - kselftest-landlock
 
   - device_type: hp-x360-12b-ca0500na-n4000-octopus
     test_plans: