[bug][critical][wip] bad devel-update-grsec.sh

There was a very serious vulnerability because we did not properly
updated the kernels in mempo 0.1.88 0.1.89 (and 0.1.90 release) we
were using still the grsec patch from 0.1.87
[wip][bug] fixing devel-update-grsec.sh + sanity