Add sleep in the connection status checking loop

Change-Id: Iee11f22775c9cc468b6ffea74bd5a75c17696ff2
diff --git a/edge-monitoring/agent_adb/edge_monitoring_agent_adb.py b/edge-monitoring/agent_adb/edge_monitoring_agent_adb.py
index b0b258f..9f9bf75 100755
--- a/edge-monitoring/agent_adb/edge_monitoring_agent_adb.py
+++ b/edge-monitoring/agent_adb/edge_monitoring_agent_adb.py
@@ -118,6 +118,7 @@
         state = result.split("=")[1]
         if state == State.connected.value:
             break
+        time.sleep(1)
         retry_count -= 1
 
     if not State.has_value(state):