chroot: bb.org: fixes for missing stuff

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
bb.org: uEnv.txt this one is for flashing

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
chroot: bb.org: fixes for missing stuff

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
bb.org: first pass at a jessie image

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>