* commit '4a3c5c525b2a62c19ecfb0ac64d09bd2a7f56ceb': (43 commits)
  Do not reset radio when MAC data request timeouts (#2647)
  Frame counters for nw keys are now stored to NVM only after send key is set (#2641)
  Adjusted stagger random to [min,min+max] and for small nw set the stagger value to 10 seconds
  Adjusted security protocol (EAP-TLS,4WH,2WH) retry timers
  High Priority timestamp compare overflow support fix.
  FHSS WS: Initialize broadcast channel count when enabling FHSS (#2642)
  Updated change log
  Changed initial EAPOL-key retries from trickle to exponential backup
  Add RTT calculation for DHCP Time calculation
  Traceroute bug fix.
  Fixed FHSS UFSI calculation unit tests
  Handle timer rollover in calculate_ufsi
  coding style
  Correct ufsi timing calculation
  Add network time vendor data element to DHCPv6 reply message
  System time read/write callbacks (#2637)
  Restart or remove transmission when MAC data request timeouts (#2636)
  Bug fix: EAPOL parent compare fix
  Fixed channel mask usage with OFDM configurations (#2633)
  Do not send too old packets (#2632)
  ...