srs_ue: add scenario for airplane mode simulation in srsUE

Change-Id: I5db2ff325ce4b4236c1ceec0831dd7420d52dedb
diff --git a/src/osmo_gsm_tester/resource.py b/src/osmo_gsm_tester/resource.py
index 8a93ea4..757a9c5 100644
--- a/src/osmo_gsm_tester/resource.py
+++ b/src/osmo_gsm_tester/resource.py
@@ -106,6 +106,8 @@
         'modem[].features[]': schema.MODEM_FEATURE,
         'modem[].rf_dev_type': schema.STR,
         'modem[].rf_dev_args': schema.STR,
+        'modem[].airplane_t_on_ms': schema.INT,
+        'modem[].airplane_t_off_ms': schema.INT,
         'osmocon_phone[].serial_device': schema.STR,
     }