Add timeout after start qemu for tests

qemu/qemu-kernel_test.go

@@ -116,6 +116,7 @@ func startTestQemu(t *testing.T, timeout time.Duration) (q *System, err error) {
 		return
 	}
 
+	time.Sleep(time.Second)
 	return
 }
 
@@ -324,6 +325,8 @@ func TestSystemDebug(t *testing.T) {
 		return
 	}
 
+	time.Sleep(time.Second)
+
 	port := 45256
 
 	q.Debug(fmt.Sprintf("tcp::%d", port))