[IPC-TAPI-SS]Defined all TAPI-SS packet types

Change-Id: I3c07c5e1c24bd363866649ab078b0ee4f8cebede
[SS] Added basic USSD request support

Change-Id: Ia83094d59d705ed75252361c0ebd74243dbdbe75
[SS] Added support of interactive USSD

Change-Id: Id82fff2e3ee700d66babdeb70a2651aa934cf372
[RIL] Use RIL prefix for ril logs. All RIL debug info is moved to radiolog

Change-Id: Idc7999ac1cad3ffc648f4180ce36868a5d124ffa
[SS] Fixed USSD hangup after sending NULL message. Fixed memory leaks in ipc_ss_error_responce

Change-Id: Id04a7188407c879f634fa2d83ffe2c49050d59b0
[TAPI-SS] Removed fake SsType parsing

Change-Id: I0afe902a00e23d29d4665e8dc314136faad8e754
[SS] Fixed ignoring "DONE!" response

Change-Id: I119097d88d4b28a510280745e2a96a82501d3a49
[SS] Corrected comment to "USSD message is empty, aborting"

Change-Id: Id9911df5026c2afedf8170b5ea7c542b82975861
Fixed conflicts

Change-Id: I26c6e8903091b8d653a8d70edfa9bd904c576db3
Merge pull request #11 from Volk204/experimental

USSD Interface
Use RIL prefix for ril logs.