Merge remote-tracking branch 'remotes/afaerber/tags/qom-cpu-for-peter' into staging

QOM CPUState and X86CPU

* QTest for PC X86CPU
* Confinement of ICC bridge X86CPU parenting to PC code

# gpg: Signature made Tue Mar 17 15:23:31 2015 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <[email protected]>"
# gpg:                 aka "Andreas Färber <[email protected]>"

* remotes/afaerber/tags/qom-cpu-for-peter:
  target-i386: Remove icc_bridge parameter from cpu_x86_create()
  tests: Add PC CPU test
  pc: Suppress APIC ID compatibility warning for QTest

Signed-off-by: Peter Maydell <[email protected]>