Fix panic on winsize syscall

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Upstream-commit: 4d4ef98326f0b21bbb661321499e200a1412bc64
Component: engine

components/engine/pkg/term/term.go

@@ -27,6 +27,8 @@ type State struct {
 type Winsize struct {
 	Height uint16
 	Width  uint16
+	x      uint16
+	y      uint16
 }
 
 // StdStreams returns the standard streams (stdin, stdout, stedrr).