Within gVisor, plumb new socket options to netstack. Within netstack, fix GetSockOpt and SetSockOpt return value logic. PiperOrigin-RevId: 226532229 Change-Id: If40734e119eed633335f40b4c26facbebc791c74
PiperOrigin-RevId: 222148953 Change-Id: I21500a9f08939c45314a6414e0824490a973e5aa