GTP_Templates: add decoder/encoder functions for RIM_Routing_Address_GTPC

When forwarding RAN TRANSPARENT CONTAINERs containers on GTP-C, the
sender adds a RIM ROUTING ADDRESS and a RIM ROUTING ADDRESS
DISCRIMINATOR. The RIM ROUTING ADDRESS is represented as an
octet-string, so we need encoder/decoder functions for it.

Related: OS#6095
Change-Id: I45d1f5b019f3847fd611c38dc19d78d6fe027c5a
1 file changed