* Reduce key duplication by enabling hardware RNG * Apply suggestion from @Copilot Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Apply suggestion from @Copilot Use micros() for worst case random seed for nrf52 Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Minor cleanup, remove dead code and clarify comment * trunk * Add useRadioEntropy bool, default false. --------- Co-authored-by: Ben Meadors <benmmeadors@gmail.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Jonathan Bennett <jbennett@incomsystems.biz>