* 'prep-up' of git://repo.or.cz/qemu/afaerber:
prep: Move int-ack register from PReP to Raven PCI emulation
prep: Initialize PC speaker
isa: Add isa_bus_from_device() method
fdc: Parametrize ISA base, IRQ and DMA
i82378/i82374: Do not create DMA controller twice