kernel updates to 91

Hello, here are each patches applied from 86-87 to 90-91.

Fell free to merge, no worries if you prefer doing it on your own but I thought might help you to save time as you seem busy lately ;).

I put each .orig file when there was a reject. Only one file for the 87 update!

More coming aslo when I ll got more free time, damn exams :(