wireguard: version bump to 0.0.20171101

wireguard: version bump to 0.0.20171101

Update wireguard to latest snapshot:

9fc5daf version: bump snapshot
748ca6b compat: unbreak unloading on kernels 4.6 through 4.9
7be9894 timers: switch to kees' new timer_list functions
6be9a66 wg-quick: save all hooks on save
752e7af version: bump snapshot
2cd9642 wg-quick: fsync the temporary file before renaming
b139499 wg-quick: allow for saving existing interface
582c201 contrib: add reresolve-dns
8e04be1 tools: correct type for CTRL_ATTR_FAMILY_ID
c138276 wg-quick: allow for the hatchet, but not by default
d03f2a0 global: use fewer BUG_ONs
6d681ce timers: guard entire setting in block
4bf32ca curve25519: only enable int128 if compiler support is sound
86e06a3 device: expand scope of destruct lock
e3661ab global: get rid of useless forward declarations
bedc77a device: only take reference if netns is different
7c07e22 wg-quick: remember to rewind DNS settings on failure
2352ec0 wg-quick: allow specifiying multiple hooks
573cb19 qemu: test using four cores
e09ec4d global: style nits
4d3deae qemu: work around ccache bugs
7491cd4 global: infuriating kernel iterator style
78e079c peer: store total number of peers instead of iterating
d4e2752 peer: get rid of peer_for_each magic
6cf12d1 compat: be sure to include header before testing
3ea08d8 qemu: allow for cross compilation
d467551 crypto/avx: make sure we can actually use ymm registers
c786c46 blake2: include headers for macros
328e386 global: accept decent check_patch.pl suggestions
a473592 compat: fix up stat calculation for udp tunnel
9d930f5 stats: more robust accounting
311ca62 selftest: initialize mutex in routingtable selftest
8a9a6d3 netns: use time-based test instead of quantity-based
e480068 netns: use read built-in instead of ncat hack for dmesg

Compile-tested-for: ar71xx
Run-tested-on: ar71xx Archer C7 v2

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>