Kernel 4.8.8 brings commit 235bde1ed3f0ff ("net: fec: Call swap_buffer()
prior to IP header alignment"), which makes Ethernet functional again
on mx28.
Bump to this version.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>