Merge tag 'pull-for-7.1-fixes-160822-1' of https://github.com/stsquad/qemu into staging

A few small fixes:

  - properly un-parent OBJECT(cpu) when closing -user thread
  - add missing timeout to aspeed tests
  - reduce raciness of login: prompt handling for aspeed tests

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* tag 'pull-for-7.1-fixes-160822-1' of https://github.com/stsquad/qemu

:
  tests/avocado: apply a band aid to aspeed-evb login
  tests/avocado: add timeout to the aspeed tests
  linux-user: un-parent OBJECT(cpu) when closing thread

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>