integration_2022_wk30

• MR !1616 (merged) NR SA tutorials v2
• MR !1620 (merged) nr_pdcp: nia1 implementation
• MR !1622 (merged) CI: do not trigger tests if nothing is tagged NSA
• MR !1623 (merged) Fix for ssb subcarrier offset in case of f<3GHz
• MR !1606 (merged) code maintenance
• MR !1568 (merged) Add undefined behavior sanitizer in build_oai, fix some errors
• MR !1621 (merged) Dynamically build L2sim proxy