nrfutil: read DEVICEID from FICR

[JordanYates]

How is it possible to read the DEVICEID from the FICR for any Nordic family device in a generic way using nrfutil?

`nrfutil --json-pretty device device-info` does not include the DEVICEID value directly.

`nrfutil --json-pretty device core-info` does not include either the FICR address (despite including the UICR address), or the offset of the DEVICEID register within the FICR block.

Both pieces on information are required if the solution is going to involve the `x-read` command.

Additionally, it looks like attempting to read FICR registers using nrfutil is just not supported (tested on both nRF52840 and nRF54L15).

['nrfutil', '--json', '--skip-overhead', 'device', 'x-read', '--address', '0xffc304', '--serial-number', '000820101337']
Error: One or more read memory tasks failed:
 * 820101337: Device error: Unknown NVM programmer 'RRAMC' for memory ficr (Generic)

['nrfutil', '--json', '--skip-overhead', 'device', 'x-read', '--address', '0x10000060', '--serial-number', '000820101337']
Error: One or more read memory tasks failed:
 * 820101337: Device error: Unknown NVM programmer 'NVMC' for memory ficr (Generic)

[leox]

Hi Jordan, 

This command seems to work "nrfutil device x-read --x-family nrf54l --address 0xffc304 --width 32 --direct" 

0x00FFC304: 19DB9AB4                              |....|

[JordanYates]

Thanks Leo, the ``--direct`` argument resolves the later problem of being unable to read the FICR registers at all.

The rest of the problem still stands, the tool does not provide the FICR address for a SoC, or the DEVICEID offset within FICR, both of which vary between device families.