updatehub: Remove initscript stop parameter
updatehub: Remove initscript stop parameter

UpdateHub initscript doesn't need to stop at reboot/shutdown, it only
needs to start correctly.

Signed-off-by: Fabio Berton <698e00bc51ed22392b375ef5a2fc95be5c8355a9@ossystems.com.br>

UpdateHub/meta-updatehub,UpdateHub/meta-updatehub,UpdateHub/meta-updatehub