Set correct soversion when building with CMake.
Set correct soversion when building with CMake.

Distrotech/oRTP,jiangjianping/ortp,carpikes/ortp,VTCSecureLLC/ortp,Linphone-sync/oRTP,VTCSecureLLC/ortp,Linphone-sync/oRTP,wugh7125/ortp,wugh7125/ortp,VTCSecureLLC/ortp,carpikes/ortp,caizw/ortp,Distrotech/oRTP,jiangjianping/ortp,wugh7125/ortp,jiangjianping/ortp,carpikes/ortp,Linphone-sync/oRTP,caizw/ortp,caizw/ortp,Distrotech/oRTP