Created ACTIVATE_MESSAGE and DEACTIVATE_MESSAGE messages.

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4687 818b1a75-f10b-46b9-bf7c-635c3b92a50f

common/utils/itti/intertask_messages_def.h

 /* This message asks for task initialization */
 MESSAGE_DEF(INITIALIZE_MESSAGE, MESSAGE_PRIORITY_MED, struct {}, initialize_message)
 
+/* This message asks for task activation */
+MESSAGE_DEF(ACTIVATE_MESSAGE,   MESSAGE_PRIORITY_MED, struct {}, activate_message)
+
+/* This message asks for task deactivation */
+MESSAGE_DEF(DEACTIVATE_MESSAGE, MESSAGE_PRIORITY_MED, struct {}, deactivate_message)
+
 /* This message asks for task termination */
 MESSAGE_DEF(TERMINATE_MESSAGE,  MESSAGE_PRIORITY_MAX, struct {}, terminate_message)