mesh: allow getting all parameters at once
mesh: allow getting all parameters at once

SoluMachines/external_iw,SoluMachines/external_iw,CTU-IIG/802.11p-iw,idor/iw,bw-oss/iw,chunyeow/iw,greearb/iw-ct,timduru/platform-external-iw,OSLL/iw,CTU-IIG/802.11p-iw,cozybit/iw,TeamEOS/external_iw,OSLL/iw,Distrotech/iw,TeamEOS/external_iw,bw-oss/iw,Distrotech/iw,cozybit/iw,timduru/platform-external-iw,greearb/iw-ct,chunyeow/iw,idor/iw