Fixes in responding call via sms

* Fix wrong message sent toast when rejected a call
When a call was rejected with an empty text message,
Telecomm displaying Message Sent toast message, but Mms
application discarding empty message. Display toast message
if message is not empty only.

* Fix display contact name in toast while responding call via sms
Send contact number to sms application instead of contact
name when number saved in contacts while responding
call via sms

Bug: 34870111
Change-Id: I5ae152482c5c467cd5748571effb69042532c5fe