Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20170711' into staging

target-arm queue:
 * v7M: ignore writes to CONTROL.SPSEL from Thread mode
 * KVM: Enable in-kernel timers with user space gic
 * aspeed: Register all watchdogs
 * hw/misc: Add Exynos4210 Pseudo Random Number Generator

# gpg: Signature made Tue 11 Jul 2017 11:28:15 BST
# gpg:                using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20170711:
  target-arm: v7M: ignore writes to CONTROL.SPSEL from Thread mode
  ARM: KVM: Enable in-kernel timers with user space gic
  aspeed: Register all watchdogs
  hw/misc: Add Exynos4210 Pseudo Random Number Generator

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