Changes

RAN_{Emulation,Adapter}: Split transport type from transport client/server mode

The RAN_Transport is used to identify the stack of protocols in use up
to SCCP. The client/server mode is some extra independent information.
For instance, RAN_Emulation doesn't really use it while RAN_Adapter
does, since the later is the one in charge of setting up the lower layer
socket connection.

Change-Id: Ib2e7d029bd7eb59cc6f3b3a28bc417f00d3fed9c

Split SCCP_Adapter out of RAN_Adapter

RAN_Adapter has further features and goes up in the stack, while
sometimes getting an SCCP SAP is enough, eg. when doing stuf with
SIGTRAN on the Core Network (eg. TCAP).

Change-Id: I0558d74d53ceb1b33c4f3d583f1b4489f6d7ee60

SCCP_Adapter: Allow configuring ipa_ccm_pars in SCCPLite transport

This is needed for instance to set ipa_unit_id, which must match the AS
name configured at the STP.

Change-Id: I16e1f5d0c40c03330642b2781dc6ddae81d821b2