Fix for gNB max feedback time parameter
This bug is causing assertions like the following
Assertion (curr_pucch->active == 0) failed!
In nr_csi_meas_reporting() /oai-ran/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c:282
CSI structure is scheduled in advance. It should be free!
because the PUCCH structure would be smaller than it should be causing
overlapping.