Add missing rtpp_record_private.h.
Add missing rtpp_record_private.h.

hongbinz/rtpproxy,dsanders11/rtpproxy,synety-jdebp/rtpproxy,sippy/rtpproxy,synety-jdebp/rtpproxy,Vocalocity/rtpproxy-pre,jevonearth/rtpproxy,hongbinz/rtpproxy,synety-jdebp/rtpproxy,hongbinz/rtpproxy,jevonearth/rtpproxy,dsanders11/rtpproxy,dsanders11/rtpproxy,Vocalocity/rtpproxy-pre,jevonearth/rtpproxy,Vocalocity/rtpproxy-pre,Vocalocity/rtpproxy-pre,synety-jdebp/rtpproxy,hongbinz/rtpproxy,jevonearth/rtpproxy,sippy/rtpproxy,sippy/rtpproxy