init-installer.sh: use fdisk -u flag to work with usb flash drives, and reduce secure partition size to 128M
grub.cfg: specify dom0_mem=2048M and conring_size=4M
hype-installer.bb: specify dom0_mem=2048M and conring_size=4M
conf/distro/oe-hype-dom0.conf

distr: add dom0 and guest xengt distro options.
busybox: override with custom syslog-startup.conf