The doc claimed every pwrmgt command except `get pwrmgt.support` returns
"ERROR: Power management not supported" when NRF52_POWER_MANAGEMENT is not
defined. `get pwrmgt.bootreason` is not inside the #ifdef (CommonCLI.cpp:787)
and answers on all boards; only pwrmgt.source and pwrmgt.bootmv are gated.
Added NRF52840 power management core functionality:
- Boot‑voltage lockout
- Initial support for shutdown/reset reason storage and capture (via RESETREAS/GPREGRET2)
- LPCOMP wake (for voltage-driven shutdowns)
- VBUS wake (for voltage-driven shutdowns)
- Per-board shutdown handler for board-specific tasks
- Exposed CLI queries for power‑management status in CommonCLI.cpp
- Added documentation in docs/nrf52_power_management.md.
- Enabled power management support in Xiao nRF52840, RAK4631, Heltec T114 boards
Robert Ekl