Previously, in f1ap_decoder.c, we asserted if we did not know a message.
Apart form decoding, we did not do anything in that file.

Additionally, in f1ap_handlers.c, we were also checking for an unknown
message, and printing a warning if a handler is not known.

This commit moves the F1AP message decoding to f1ap_handlers.c, and
deletes f1ap_decoder.c. In summary, we don't assert on an unknown
message, and compile less files. The rest is unchanged.

integration_2023_w21

See merge request oai/openairinterface5g!2128

* !2097 Fix: NR UE timing adjust
* !2100 CI: AW2S pipeline - iperf test added, modifs in OC projects usage
* !2119 Set kernel parameters for X4x0
* !2121 Fix regression pdu session release
* !2124 handle --disable-stats in rrc gNB
* !2125 Tutorials: minor updates on NR SA Tutorial
* !2126 bugfix for PRACH format C2 at UE
* !1964 Merge secu osa into openair3/SECU
* !2101 Use F1 internally: UE Context Release
* !2120 Use F1 internally: UE Context Modification
* !2129 Adding a check to avoid having more logical antenna ports than physical in config file

There are a number of timers in RRC. Those are not or only partially
implemented, and certainly don't work in F1. Hence, remove them to
replace with a better implementation later.

Tutorials: update ubuntu iso download link to 22.04.2, update Windows Quectel driver version, remove nokrnmod flag, it is enabled by default