More samples will come. Current one is meant to test ieee802154 with
cc2520 on quark_se_devboard target. Some future sample will show how to
use the Qemu uart pipe fake 802.15.4 radio driver for testing on one
host.
Change-Id: Idea2b16cde091c7da926ca8aa71912fbfd0a3d62
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>