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40048f0f25
lwIP was recently updated in a89ac9e24a
to STABLE-2_2_0_RELEASE, and this introduced a change in the configuration
variable `DHCP_DOES_ARP_CHECK`, renaming it to `LWIP_DHCP_DOES_ACD_CHECK`.
This commit fixes the ports lwIP settings to use the new configuration
option.
Without this option, connecting to a WiFi access-point takes about 12.5
seconds. With this option (ie disabling DHCP ARP checks) connecting takes
about 4 seconds.
Tested on an RPI_PICO_W and PYBD_SF2.
Signed-off-by: Damien George <damien@micropython.org>