Integration 2022 week 18

- MR !1484 NR 20 MHz with LTE raster on AW2S Jaguar
- MR !1499 Handle RRC processing time at gNB
- MR !1511 NR UE memory leak fixes
- MR !1523 Avoid gNB to exit when UE release or becomes out of coverage
- MR !1533 Code and CI fixes
- MR !1536 feat(ci): add script to properly flatten the target images
- MR !1537 Fix for OAI UE AUTH_REQ processing additional check for RAND value
- MR !1543 x2 nsa bug at socket establishment
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