IMS: Deflect call feature

Code changes to support IMS Deflect call feature.

CRs-Fixed: 713856

Conflicts:
telecomm/java/android/telecomm/ConnectionService.java
telecomm/java/android/telecom/InCallAdapter.java
Change-Id: I74b7fd34cad8d49f660fb05bd33becf6ae1de5d2
Compilation fixes on new AoSP

Change-Id: If551c856c1717e2708971568604ae9d7396706ba
Add config for the expire age of partial segment messages.

Set the value to 30 days based on default value in code,
then it could be customized via res overlay mechanism.

Change-Id: Ia219aa59dd009d831abb03b5921763ade38f0c50

Change-Id: I46fda3389a34b99b6e8e5bdb07a16a28ba49ca23
Conflicts:
core/res/res/values/symbols.xml