gNB: increase some configuration defaults
A couple of defaults (LDPC decoder iterations, UL max MCS) are low, and a "default" OAI will not have good UL throughput. Let's increase the defaults, as most machines should handle them.
- set UL max MCS from 9 to 28 in config, and remove this config parameter from many config files
- set LDPC decoder iterations from 5 to 12 by default: better UL behavior, machines should be performant enough
- remove many ULSCH max frame inactivity 0, 1, config options to move towards scheduling UEs less often
Edited by Robert Schmidt