mesh11sd: update to version 6.2.0

mesh11sd: update to version 6.2.0

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 24.10, 25.12 and master/snapshot.

Description: mesh11sd (6.2.0)

This is a major new release with significant new functionality.
It includes:
 * Add three dimensional meshnode mobility support. Stable connectivity with intra-mesh relative velocities (3dRV) of 1.5 m/s or greater is supported.
 * Add Access Point usage data collection from all mesh peers in a centralised database residing on the mesh portal (apmond)
 * Add Comprehensive wireless chipset capability discovery (wifi-chipset-detect)

The full changelog can be seen here:
https://github.com/openNDS/mesh11sd/blob/v6.2.0/ChangeLog

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