Revert "shinano: use older netmgrd for now"

This reverts commit 04287e87eb4c50554bab5dacb57948e554bcbad2.
Revert "shinano: updated blob from 17.1.1.A.402"

This reverts commit 7319c7869d8b5906ac08e3da8bae7de0285fc3de.