Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20160719-2' into...

Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20160719-2' into staging

linux-user fixes before 2.7 freeze, fix commit message

# gpg: Signature made Tue 19 Jul 2016 14:18:54 BST
# gpg:                using RSA key 0xB44890DEDE3C9BC0
# gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>"
# gpg:                 aka "Riku Voipio <riku.voipio@linaro.org>"
# Primary key fingerprint: FF82 03C8 C391 98AE 0581  41EF B448 90DE DE3C 9BC0

* remotes/riku/tags/pull-linux-user-20160719-2:
  linux-user: AArch64 has sync_file_range, not sync_file_range2
  linux-user: Fix type for SIOCATMARK ioctl
  linux-user: define missing sparc syscalls
  linux-user: Fix terminal control ioctls
  linux-user: Add some new blk ioctls
  linux-user: Handle short lengths in host_to_target_sockaddr()
  linux-user: Forget about synchronous signal once it is delivered
  linux-user: Correct type for LOOP_GET_STATUS{,64} ioctls
  linux-user: Correct type for BLKSSZGET
  linux-user: Add loop control ioctls
  linux-user: Check sigsetsize argument to syscalls
  linux-user: add nested netlink types
  linux-user: convert sockaddr_ll from host to target
  linux-user: add fd_trans helper in do_recvfrom()
  linux-user: fix netlink memory corruption
  linux-user: fd_trans_*_data() returns the length

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>