- remove PDCP reestablishment for DRBs from RRCReestablishment message generation
- do PDCP reestablishment and CUUP notification calls after reception or RRCReestablishmentComplete
- this is necessary to make it consistent with the RRCReconfiguration message that contains
  RadioBearerConfig with the list of bearers to add/release
  which is followed by PDCP re-establishment at UE