Dropping log level to debug in few places

Change-Id: I4b42d4f3edfc6e9cdd0822cfcb74d1070b0b7a70
diff --git a/openflow/api/src/main/java/org/onosproject/openflow/controller/driver/AbstractOpenFlowSwitch.java b/openflow/api/src/main/java/org/onosproject/openflow/controller/driver/AbstractOpenFlowSwitch.java
index 43f3d68..294cd3f 100644
--- a/openflow/api/src/main/java/org/onosproject/openflow/controller/driver/AbstractOpenFlowSwitch.java
+++ b/openflow/api/src/main/java/org/onosproject/openflow/controller/driver/AbstractOpenFlowSwitch.java
@@ -274,7 +274,7 @@
     public void setRole(RoleState role) {
         try {
             if (this.roleMan.sendRoleRequest(role, RoleRecvStatus.MATCHED_SET_ROLE)) {
-                log.info("Sending role {} to switch {}", role, getStringId());
+                log.debug("Sending role {} to switch {}", role, getStringId());
                 if (role == RoleState.SLAVE || role == RoleState.EQUAL) {
                     this.role = role;
                 }