vty: simplify endpoint allocation

mgcp_parse_config() uses a helper function allocate_trunk() to
perform the trunk allocation. This helper function only calls
mgcp_endpoints_allocate() and checks the return code.

Call mgcp_endpoints_allocate() directly from mgcp_parse_config()

Change-Id: Iefdc5b905d76d2cd97f26584261fe5cbefb699cf
1 file changed