cloud_discovery will not start if the CN does not match the devices serial.
an error will be written to syslog
---
Wed Aug 6 14:23:23 2025 user.notice root: ERROR
Wed Aug 6 14:23:23 2025 user.notice root: ERROR
Wed Aug 6 14:23:23 2025 user.notice root: ERROR
Wed Aug 6 14:23:23 2025 user.notice root: The certificate used has a CN that does not match the serial of the device
Wed Aug 6 14:23:23 2025 user.notice root: ERROR
Wed Aug 6 14:23:23 2025 user.notice root: ERROR
Wed Aug 6 14:23:23 2025 user.notice root: ERROR
---
Signed-off-by: John Crispin <john@phrozen.org>