Fixed MMS data connection not re-established after airplane mode

In some corner cases, data attached event is not sent from service
state tracker after APM on with IWLAN available. Fixed by sending
data attached event for the first time airplane mode is on and
data is in service.

Test: Manual
Bug: 130785238
Change-Id: I25b69542f70cdab9a415606abcebd9c96578972f