Merge remote-tracking branch 'remotes/pmaydell/tags/pull-softfloat-20160219' into staging

softfloat queue:
 * update MAINTAINERS with a section for softfloat
 * drop all the uses of int_fast*_t types

# gpg: Signature made Fri 19 Feb 2016 16:34:35 GMT using RSA key ID 14360CDE
# 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>"

* remotes/pmaydell/tags/pull-softfloat-20160219:
  MAINTAINERS: Add section for FPU emulation
  osdep.h: Remove int_fast*_t Solaris compatibility code
  fpu: Use plain 'int' rather than 'int_fast16_t' for exponents
  fpu: Use plain 'int' rather than 'int_fast16_t' for shift counts
  fpu: Remove use of int_fast16_t in conversions to int16
  target-mips: Stop using uint_fast*_t types in r4k_tlb_t struct

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