re-enable icd in lock-app (#33634)

Author: lpbeliveau-silabs

examples/lock-app/silabs/openthread.gni

@@ -28,7 +28,7 @@ openthread_external_platform =
 sl_enable_test_event_trigger = true
 
 # ICD Default configurations
-chip_enable_icd_server = false
+chip_enable_icd_server = true
 chip_subscription_timeout_resumption = false
 sl_use_subscription_syncing = true