as 3400 or 2.685 GHz is on the edge of band 7, some phones won't connect
to a 20 MHz cell on this EARFCN.
In order to simplify testing with other bandwidths we change the default EARFCN.
* Fix memory corruption when phy calling mac scheduler and not yet initiated
* Do not drop CQI if collision with ACK/NACK and PUSCH
* Allocate CQI resources for SCell properly
* Use UE_PCELL_CC_IDX macro
* Protect ul_sched from being called if not yet started
- move cell specific eNB params to cell list in rr.conf
- make sure DL EARFCN and DL freq can be used to manually overwrite a single cell config
- fix SIB packing and transmission for multi cell configs
- introduce cell list to MAC
- adapt default enb.conf.example and rr.conf.example