Merge remote-tracking branch 'afaerber-or/qom-cpu-3a' into staging

* afaerber-or/qom-cpu-3a: (27 commits)
  target-s390x: Pass S390CPU to s390_cpu_restart()
  s390-virtio: Let s390_cpu_addr2state() return S390CPU
  s390-virtio: Use cpu_s390x_init() to obtain S390CPU
  target-s390x: Let cpu_s390x_init() return S390CPU
  xen_machine_pv: Use cpu_x86_init() to obtain X86CPU
  arm_pic: Pass ARMCPU to arm_pic_init_cpu()
  arm_boot: Pass ARMCPU to arm_load_kernel()
  xilinx_zynq: Use cpu_arm_init() to obtain ARMCPU
  pxa2xx_gpio: Store ARMCPU in PXA2xxGPIOInfo
  pxa2xx_pic: Store ARMCPU in PXA2xxPICState
  pxa2xx: Pass ARMCPU to pxa2xx_pic_init()
  exynos4210: Use cpu_arm_init() to store ARMCPU
  vexpress: Use cpu_arm_init() to obtain ARMCPU
  realview: Use cpu_arm_init() to obtain ARMCPU
  arm_boot: Pass ARMCPU to arm_boot_info::secondary_cpu_reset_hook()
  arm_boot: Pass ARMCPU to arm_boot_info::write_secondary_boot()
  versatilepb: Use cpu_arm_init() to obtain ARMCPU
  musicpal: Use cpu_arm_init() to obtain ARMCPU
  integratorcp: Use cpu_arm_init() to obtain ARMCPU
  strongarm: Use cpu_arm_init() to store ARMCPU in StrongARMState
  ...