wireguard: version bump to 0.0.20171017

wireguard: version bump to 0.0.20171017

This is a simple version bump. Changes:

  * noise: handshake constants can be read-only after init
  * noise: no need to take the RCU lock if we're not dereferencing
  * send: improve dead packet control flow
  * receive: improve control flow
  * socket: eliminate dead code
  * device: our use of queues means this check is worthless
  * device: no need to take lock for integer comparison
  * blake2s: modernize API and have faster _final
  * compat: support READ_ONCE
  * compat: just make ro_after_init read_mostly

  Assorted cleanups to the module, including nice things like marking our
  precomputations as const.

  * Makefile: even prettier output
  * Makefile: do not clean before cloc
  * selftest: better test index for rate limiter
  * netns: disable accept_dad for all interfaces

  Fixes in our testing and build infrastructure. Now works on the 4.14 rc
  series.

  * qemu: add build-only target
  * qemu: work on ubuntu toolchain
  * qemu: add more debugging options to main makefile
  * qemu: simplify shutdown
  * qemu: open /dev/console if we're started early
  * qemu: phase out bitbanging
  * qemu: always create directory before untarring
  * qemu: newer packages
  * qemu: put hvc directive into configuration

  This is the beginning of working out a cross building test suite, so we do
  several tricks to be less platform independent.

  * tools: encoding: be more paranoid
  * tools: retry resolution except when fatal
  * tools: don't insist on having a private key
  * tools: add pass example to wg-quick man page
  * tools: style
  * tools: newline after warning
  * tools: account for padding being in zero attribute

  Several important tools fixes, one of which suppresses a needless warning.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>