Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20161101-2' into staging

tcg queued patches

# gpg: Signature made Tue 01 Nov 2016 16:45:42 GMT
# gpg:                using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC  16A4 AD12 70CC 4DD0 279B

* remotes/rth/tags/pull-tcg-20161101-2:
  tcg: correct 32-bit tcg_gen_ld8s_i64 sign-extension
  tcg/tcg.h: Improve documentation of TCGv_i32 etc types
  MAINTAINERS: Update PPC status and maintainer
  target-microblaze: Cleanup dec_mul
  tcg: Add tcg_gen_mulsu2_{i32,i64,tl}
  log: Add locking to large logging blocks
  target-openrisc: Do not dump cpu state with -d in_asm
  target-microblaze: Do not dump cpu state with -d in_asm
  target-cris: Do not dump cpu state with -d in_asm

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