It should be already generally supported, but many parameters needs in NR case
are currently hardcoded to their TDD values. I've adjusted only a few of them
and stopped, becuase there is currently no practical case at hand for me to
test it. Still I think it makes sense to save this first step.

For ORS, who uses TDD, rendered config stays practically the same:

```
$ ./pythonwitheggs slapos-render-config.py && xdiff -C -C config/{old,out}/ors/
```

```diff
diff --git a/config/old/ors/gnb/enb.cfg b/config/out/ors/gnb/enb.cfg
index ead7f0160..9a260d73f 100644
--- a/config/old/ors/gnb/enb.cfg
+++ b/config/out/ors/gnb/enb.cfg
@@ -97,6 +97,7 @@

         prach: {
+          ra_response_window: 20,
         },

         pdcch: {
@@ -180,7 +181,6 @@
       preamble_received_target_power: -110,
       preamble_trans_max: 7,
       power_ramping_step: 4,
-      ra_response_window: 20,
       restricted_set_config: "unrestricted_set",
       ra_contention_resolution_timer: 64,
       ssb_per_prach_occasion: 1,
```