i9300: audio config cleanup

Change-Id: Ibde13efbe4b93ec200bfa7d4720ca223de2efc68
i9300: add opensource libril, remove ril class

- remove blob rild
- remove blob libril.so

Change-Id: Iced6c86e5af2a2d65076d12fc150ebc6c4d786a4

Conflicts:

    proprietary-files.txt