ppc: move more files to hw/ppc

# PREP target

obj-y += mc146818rtc.o

# IBM pSeries (sPAPR)

obj-$(CONFIG_PSERIES) += spapr_hcall.o spapr_rtas.o

obj-$(CONFIG_PSERIES) += spapr_vty.o spapr_llan.o spapr_vscsi.o

obj-$(CONFIG_PSERIES) += spapr_pci.o pci/pci-hotplug.o spapr_iommu.o

obj-$(CONFIG_PSERIES) += spapr_events.o spapr_nvram.o

obj-$(CONFIG_PSERIES) += spapr_pci.o pci/pci-hotplug.o

obj-$(CONFIG_PSERIES) += spapr_nvram.o

# PowerPC 4xx boards

obj-y += ppc4xx_pci.o

# PowerPC OpenPIC

# shared objects

obj-y += ppc.o ppc_booke.o

# IBM pSeries (sPAPR)

obj-$(CONFIG_PSERIES) += spapr.o xics.o spapr_vio.o

obj-$(CONFIG_PSERIES) += spapr.o xics.o spapr_vio.o spapr_events.o

obj-$(CONFIG_PSERIES) += spapr_hcall.o spapr_iommu.o spapr_rtas.o

# PowerPC 4xx boards

obj-y += ppc405_boards.o ppc4xx_devs.o ppc405_uc.o ppc440_bamboo.o

# PReP