gen-egg-recipes: add stty

Signed-off-by: Mario Domenech Goulart <mario@ossystems.com.br>
chicken-egg-stty: add recipe for version 0.2.4

Signed-off-by: Mario Domenech Goulart <mario@ossystems.com.br>
chicken: update to version 4.9.0.1

Signed-off-by: Mario Domenech Goulart <mario@ossystems.com.br>