feat(lwip): support cloning pbuf_ref when ipv6 forwarding; add unit tests

[LWIP submodule changes]: git log --oneline 0a44efa1..ebabd6d7

Detailed description of the changes:
  - ip6: add some unit test cases for ip6 forwarding (esp-lwip@ebabd6d7)
  - ip6: clone the buf when forwarding a PBUF_REF packet (esp-lwip@adcd330e)
This commit is contained in:
Xu Si Yu
2025-02-28 18:44:43 +08:00
parent cb9257dae7
commit 8fcac9284e