xds-server build broken - undefined: engineio.MessageType

### Build XDS server (version 7.90.0, subversion 2019-03-07_162127) - Debug mode
# gerrit.automotivelinux.org/gerrit/src/xds/xds-server/vendor/github.com/mattn/go-isatty
vendor/github.com/mattn/go-isatty/isatty_linux.go:11:12: undefined: unix.IoctlGetTermios
# gerrit.automotivelinux.org/gerrit/src/xds/xds-server/vendor/github.com/googollee/go-socket.io
vendor/github.com/googollee/go-socket.io/parser.go:50:16: undefined: engineio.MessageType
vendor/github.com/googollee/go-socket.io/parser.go:54:13: undefined: engineio.MessageType
vendor/github.com/googollee/go-socket.io/parser.go:94:32: undefined: engineio.MessageText
vendor/github.com/googollee/go-socket.io/parser.go:134:32: undefined: engineio.MessageBinary
vendor/github.com/googollee/go-socket.io/parser.go:182:11: undefined: engineio.MessageText
vendor/github.com/googollee/go-socket.io/parser.go:328:11: undefined: engineio.MessageText
vendor/github.com/googollee/go-socket.io/server.go:18:32: cannot use transportNames (type []string) as type *engineio.Options in argument to engineio.NewServer
vendor/github.com/googollee/go-socket.io/server.go:32:7: s.eio.SetPingTimeout undefined (type *engineio.Server has no field or method SetPingTimeout)
vendor/github.com/googollee/go-socket.io/server.go:37:7: s.eio.SetPingInterval undefined (type *engineio.Server has no field or method SetPingInterval)
vendor/github.com/googollee/go-socket.io/server.go:76:45: undefined: engineio.Sessions
vendor/github.com/googollee/go-socket.io/server.go:37:7: too many errors
make: *** [Makefile:119: xds] Error 2