mesh11sd: update to version 4.1.1

mesh11sd: update to version 4.1.1

Maintainer: Rob White rob@blue-wave.net

Compile tested: All

Run tested: arm_cortex-a7_neon-vfpv4, mipsel_24kc, mips_24kc, aarch64_cortex-a53;
    On 23.5 and master/snapshot.

Description: mesh11sd (4.1.1)
This release provides a critical bug fix.
In non-cpe peer mode, if the portal node dhcp6 server fails to respond or cannot be reached,
multiple instances of odhcp6c are created, resulting in an eventual oom condition.

Details can be found here:
https://github.com/openNDS/mesh11sd/releases/tag/v4.1.1

Signed-off-by: Rob White <rob@blue-wave.net>