please enable stty in busybox initramfs

Binary package hint: busybox

For ubunu on ARM where we have no BIOS and in some cases no free access to the bootloader. We try to build a soft bootloader that mimics grub in initramfs. The idea is to have a minimal kernel (below 1M in size) containing only fbdev support and support for the possible disk devices (MMC, USB and in some cases SATA/PATA) on a specific board (the trampoline kernel will have to be tailored for each board). The initramfs will contain all possible filesystem modules and will be booted with a /sbin/init similar to http://people.ubuntu.com/~ogra/arm/bootmenu This script will (similar to casper) search all attached disk devices for a menu.lst, syslinux.cfg or isolinux.cfg, read the kernel, initramfs and append parameter lines from the found file and then boot into the actual target kernel using kexec. For the UI that closely mimics grub's (including menu and line-editing) functions stty is used to make the whole system functionable, kexec needs to get a hook in the initramfs (so its available in /sbin), update-grub needs to be made available on the ARM architecture (so the kernel packages can just run their postinst without modification and the /sbin/init script can re-use the generated menu.lst on the target system) and stty needs to be made available in busybox in the initramfs.

Please enable stty support in the config.initramfs file for our busybox-initramfs build.