Linux 4.9 rc8

So if anybody has been following the git tree, it should come as no
surprise that I ended up doing an rc8 after all: things haven't been
bad, but it also hasn't been the complete quiet that would have made
me go "no point in doing another week".

Extra kudos to Arnd, who actually root-caused the incredibly annoying
"modversions do not work with new versions of binutils", bisecting it
to a particular change to symbol handling in binutils, and then adding
a small one-liner patch to the kernel to work around the issue. We
already had other workarounds in place, but it's always good to know
exactly what in the tool chain changed to cause things like this.

But that one-liner was just one of 163 small fixes (not counting
merges) in rc8. That's pretty small (for the kernel), but certainly
not completely quiet. Full details appended, but it's mostly
networking (error path leaks stand out, but it's a random collection)
and random drivers, with a couple of small fixes to core stuff