Merge tag 'net-next-20250310' of https://source.denx.de/u-boot/custodians/u-boot-net into next

Pull request net-next-20250310.

CI:
* https://source.denx.de/u-boot/custodians/u-boot-net/-/pipelines/25084

net-lwip:
* Add support for CA (root) certificates to HTTPS
* Add CONFIG_LWIP_DEBUG_RXTX to trace in/out messages