Automated DT boot report for various ARM defconfigs.

Boot test simply checks if kernel can boot to initramfs with busybox and run some basic commands (e.g. 'cat /proc/cpuinfo').

Tree/Branch: linus/HEAD Git describe: v3.11-6855-g4de9ad9 Commit: 4de9ad9bc0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile