Review SLIC RAM read, write and wait
Added FXO setup. Review some #defines
Fix TX/RX timeslot word length. Use the lowest 512KHz SSI speed usable by the SLIC to permit max 4 timeslots
Fix silabs FXS patch upload and verification. Minimal FXS startup procedure. voice DAA FXO initialization
Use FXS patch upload, FXS initialization and Voice DAA FXO initialization. Added a module param operating mode