aries-common: init: fix script updater

1. fix ui_print function on cwm and twrp recovery versions
2. use busybox from copied from kernel tree (utilities folder)
3. fix code style

Signed-off-by: Humberto Borba <humberos@gmail.com>
Change-Id: I0575d84870931b819dbedecf21896941c10285b2