mgcp_client: Allow submitting and parsing IPv6 addr in SDP

Existing mgcp_client_test code required the '.' to trigger the same code
path, since with this commit we do extra checks and without a dot the
address is not accepted as IPv4 by osmo_ip_str_type().

Change-Id: I936bf57d37f5f0607dfe7fc66c37e424c3793f9b
4 files changed