output signal used to be a public member to be used by DM to override
the stream signal. Now since there is no longer separation between
public and private part of stream, they are combined. The overriding
was not working properly as well, which is addressed by this change
Signed-off-by: NEric Yang <Eric.Yang2@amd.com>
Reviewed-by: NTony Cheng <Tony.Cheng@amd.com>
Acked-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>