Set default value for usedZeroRtt in TransportInfo struct
Set default value for usedZeroRtt in TransportInfo struct

Summary: Set default value to `false` for `usedZeroRtt` in `TransportInfo` struct.

Reviewed By: bschlinker, kvtsoy

Differential Revision: D40502292

fbshipit-source-id: 77a3330ac9ec5a2e879d0a6313719ffa70df5b3f

facebookincubator/mvfst,facebookincubator/mvfst,facebookincubator/mvfst,facebookincubator/mvfst,facebookincubator/mvfst