rcn: post release

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
bb.org: make sure bb.org repo is armhf only

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
bb.org: use multiarch to add /lib/ld-linux.so.3, so users with old gcc can still run programs..

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