lwip: Reference official 2.1.3-esp branch

Actual changes against 2.1.3-esp-dev:
* Fix IPv6 zoning violations
* Melted on-demand timer's commits into one
This commit is contained in:
David Cermak
2022-06-29 13:09:14 +02:00
committed by David Čermák
parent 38bb2debea
commit 14c6d3a889