Merge remote-tracking branch 'remotes/aurel/tags/pull-sh4-next-20150913' into staging

sh4-next:

- TCG optimizations
- fix initramfs endianness issue

# gpg: Signature made Sun 13 Sep 2015 22:16:12 BST using RSA key ID 1DDD8C9B
# gpg: Good signature from "Aurelien Jarno <aurelien@aurel32.net>"
# gpg:                 aka "Aurelien Jarno <aurelien@jarno.fr>"
# gpg:                 aka "Aurelien Jarno <aurel32@debian.org>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 7746 2642 A9EF 94FD 0F77  196D BA9C 7806 1DDD 8C9B

* remotes/aurel/tags/pull-sh4-next-20150913:
  sh4: Fix initramfs initialization for endiannes-mismatched targets
  target-sh4: improve shad instruction
  target-sh4: improve shld instruction
  target-sh4: improve cmp/str instruction
  target-sh4: use deposit in swap.b instruction
  target-sh4: add flags markups for FP helpers

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