poky: sumo refresh 64a257fa22..fa962ec72f

Update poky to sumo HEAD.

Anuj Mittal (1):
      linux-yocto: update genericx86* SRCREV for 4.14

Martin Hundebøll (2):
      shadow: improve reproducibility by hard-coding shell path
      busybox: make busybox.links.{suid, nosuid} reproducible

Paul Eggleton (1):
      socat: fix LICENSE

Richard Purdie (10):
      sanity: Add check for WSL
      poky.conf: Update the distros we test against on the autobuilder
      poky.conf: Bump version for 2.5.2 sumo release
      build-appliance-image: Update to sumo head revision
      bitbake: server/process: Fix unclosed socket warnings upon server connection refused
      bitbake: lib/bb/server: Avoid UnboundLocalError traceback
      bitbake: server/process: Fix ConnectionRefusedError tracebacks
      bitbake: runqueue: Ensure disk monitor is started when no setscene tasks are run
      bitbake: process: Flush key output to logs
      bitbake: main: Don't use print() directly, use logger

Change-Id: Ie14695232a8adecd2013d629208da320963532ce
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>