multiudpsink: Add missing socket.h include
Without this include, macro like SO_BINDTODEVICE is not visible and associated feature gets out-compiled. This also affects the support for SO_SNDBUF.
This seems to be a regression starting from 1.16.
Without this include, macro like SO_BINDTODEVICE is not visible and associated feature gets out-compiled. This also affects the support for SO_SNDBUF.
This seems to be a regression starting from 1.16.