AETHER-45 Add support of latest features in BESS based SPGWU

This patchset resolves the issues below.
Also enable PFCP by default.
- AETHER-370 Add support of UP4 pipeline
- AETHER-371 Add support of PFCP iface
- AETHER-373 Make upf.json fully configurable

Change-Id: I665168156968c090f3c297228b7b35f3dc0d8ace
9 files changed
tree: b3899f70d3e7c92d1cf61f07290d294f18a42955
  1. .gitreview
  2. .reuse/
  3. LICENSES/
  4. aether-apps/
  5. comac/
  6. omec/
  7. ran/