[RIL-SND] Added SND functions from Replicant

Change-Id: Idfde1db1e3cef27079c43c560d5bd0330aabb1f4
[IPC-SOUND] Added sound_send_packet sender

Change-Id: Ic52d99fcbe9a3a9515d51985b24a9a0bb845aec7
Merge pull request #8 from Volk204/sound

Sound