Fix notification serialization with odl-leaf-nodes-only
Rather than attempting to roll a SchemaPath from PathArguments, use the
provided tool to perform that function -- in a centralized manner.
Add tests to cover serialization of augmentation and choice nodes.
JIRA: NETCONF-848
Change-Id: I9f6dffd9532bd3d52021bbac58473c3cf3b58937
Signed-off-by: Peter Puškár <ppuskar@frinx.io>
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
(cherry picked from commit
c123de52b03a3ee4fba2da5e7ec18a214d3876e8)