ep: move endpoint struct and define to mgcp_ep.h

The endpoint and the define that computes the endpoint number is
defined in mgcp_internal.h. Since we have a dedicated module for
endpoint related code it makes sense to move the endpoint related
parts there.

- move struct mgcp_endpoint to mgcp_ep.h

- move #define ENDPOINT_NUMBER(endp) to mgcp_ep.h

Change-Id: Ibae55e1859bd41e2d1918eda433418b4bf8365fe
6 files changed