[linux-yocto] v4.8.x - stable updates comprising v4.8.20

[Paul Gortmaker]

Bruce, Yocto kernel folks:

Another week, another stable update.  Continuing on the previously
released v4.8.19 kernel, we now have the appropriate content from 4.9.6
and 4.9.7 applied on top of our latest 4.8 baseline.  Once again, I've
combined two 4.9.x which results in about 150 backported commits.

As before, I've put this 4.8.x queue through the various testing that I
figured made sense, and then bumped the Makefile and did the signed tag
just as per the v4.8.19 and v4.8.18 previously.

Please find a signed v4.8.20 tag using this key:

http://pgp.mit.edu/pks/lookup?op=vindex&search=0xEBCE84042C07D1D6

in the repo in my kernel.org directory here:

   https://git.kernel.org/cgit/linux/kernel/git/paulg/linux-4.8.y.git/
   git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux-4.8.y.git

for merge to standard/base in linux-yocto-4.8 and then out from there
into the other base and BSP branches.

For those who are interested, the evolution of the commits is here:

   https://git.kernel.org/cgit/linux/kernel/git/paulg/longterm-queue-4.8.git/

This repo isn't needed for anything; it just exists for transparency and
so people can see how the commits were adjusted to apply to the 4.8.x
kernel baseline in case people are interested.

Paul.
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