Merge remote-tracking branch 'remotes/rth/tags/pull-hppa-20190212' into staging

Convert to decodetree.
Fix signed overflow conditions.
Fix dcor.
Add CPU MIE to PCI address space.

# gpg: Signature made Tue 12 Feb 2019 21:26:07 GMT
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-hppa-20190212: (24 commits)
  hw/hppa: forward requests to CPU HPA
  target/hppa: fix dcor instruction
  target/hppa: Fix addition '</<=' conditions
  target/hppa: Rearrange log conditions
  target/hppa: move GETPC to HELPER() functions
  target/hppa: Merge translate_one into hppa_tr_translate_insn
  target/hppa: Convert fp operate insns
  target/hppa: Convert fp fused multiply-add insns
  target/hppa: Convert halt/reset insns
  target/hppa: Convert fp indexed memory insns
  target/hppa: Convert offset memory insns
  target/hppa: Convert arithmetic immediate insns
  target/hppa: Convert direct and indirect branches
  target/hppa: Convert shift, extract, deposit insns
  target/hppa: Convert conditional branches
  target/hppa: Convert fp multiply-add
  target/hppa: Convert indexed memory insns
  target/hppa: Convert arithmetic/logical insns
  target/hppa: Convert memory management insns
  target/hppa: Unify specializations of OR
  ...

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