Merge branch 'master' of git://git.denx.de/u-boot-ppc4xx

* 'master' of git://git.denx.de/u-boot-ppc4xx:
  ppc4xx: Add Io64 board support
  ppc4xx: fix PMC440 painit command
  ppc4xx: remove invalid access to PCI_BRDGOPT2 register
  ppc4xx: use CONFIG_PCI_BOOTDELAY instead of private implementation