[STK] Adding default message to SMS, DTMF, SS, USSD
[STK] Fix SET_UP_CALL behaviour as https://bugzilla.mozilla.org/show_bug.cgi?id=847057#c12 and https://bugzilla.mozilla.org/show_bug.cgi?id=847057#c48
[STK] Improved DTMF behaviour
[STK] Only shows postMessage if confirmed call
[STK] Improved SS behaviour
[STK] Fixed SMS location message
Merge pull request #10214 from frsela/STK/Bug847057

Bug 847057 [Buri][STK]No information to user when "alpha ID" is absent or empty within send sms/ send ss/ send ussd/ set up call proactive command, r=timdream