Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20160405' into staging

Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20160405' into staging

tcg/mips compilation fix

# gpg: Signature made Tue 05 Apr 2016 20:48:38 BST using RSA key ID 4DD0279B
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# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"

* remotes/rth/tags/pull-tcg-20160405:
  tcg/mips: Fix type of tcg_target_reg_alloc_order[]

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