The layerscape kernel patches appears to be just some uncleaned local
development tree, where patches are sometimes directly followed by
their revert. While this does not seem a problem in the first place,
it becomes incredibly unpleasant when the upstream kernel changes in
the relevant areas and requires rebase.
This removes all these patch-revert pairs and refreshs the rest.
It removes about 44000 lines of entirely useless code.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>