mgcp: move misplaced include

mgcp.h includes mgcp_ep.h but does not use anything from it. This
does not hurt the mgcp code internally, but when mgcp.h is included
by an application compilation fails because mgcp_ep.h is not
installed.

remove mgcp_ep.h from include list in mgcp.h

add mgcp_ep.h to include list in mgcp_conn.c where it is needed.

Change-Id: Ib58a8ed64f729055282c2b9673f7684cdfdb5936
2 files changed