The physim tests fail because, typically, the same tests gets assigned
to the same node which then is overloaded. This MR assigns pods to
different nodes to prevent this.

- variable is_secondary_gnb is not used anywhere, so remove
- variable lowmem is not used/defines should be changed, so remove

- Handle k(ilo) bytes
- Fix magnitudes for kilo and giga
- Correctly parse status line in iperf logs

This commit enables UL traffic in do-ra mode by doing two changes:
- configure SDAP to send traffic to TUN interface instead of GTP by
  abusing enb_flag=0 (i.e., setting UE mode for gNB SDAP)
- manually enable RLC LCID in UE MAC, since nr_DRB_preconfiguration()
  statically enables one DRB bearer, without notifying MAC

integration_2022_wk49

See merge request oai/openairinterface5g!1851

!1714 first-fix-rrc-mac-interface
!1755 DL/UL channel estimation improvement
!1788 NR RRC harmonization of CSI reporting
!1848 Remove old RNTI at MAC layer when Msg3 RRCSetupRequest carries ng-5G-S-TMSI-Part1
deactivate SRS in SA tests: creates RT problems
!1809 Doppler Effect
!1831 Nr ue fix asn1 memleak
!1842 Parallelize ASN.1 generation and build
!1853 Correct ue_ip driver module for RHEL9
!1850 Fix T1 offload test
!1461 Optimize LTE TM2 modulation (doesn't work well but it is already the case)
!1806 Repair doxygen documentation generation
!1856 hotfix for nr_rrc_data_req for the unfortunate SDU size 255

the SDU has this size the function will return. This is an old piece of
code where 255 meant -1 which was what was returned from the asn1c
encoding function if the ASN.1 message was not encodable.

- Correct log message for directory of generated doxygen doc
- Correct path for image
- Skip to build libraries if not requested