linux-phytec-fsl

6lowpan: iphc: use ipv6 api to check address scope

This patch removes the own implementation to check of link-layer,
broadcast and any address type and use the IPv6 api for that.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>