build: always link device_tree.o into emulators if libfdt available

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
ppc: express FDT dependency of pSeries and e500 boards via default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: move boards and other isolated files to hw/ARCH

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arm: move files referencing CPU to hw/arm/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
i386: move files referencing CPU to hw/i386/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
m68k: move files referencing CPU to hw/m68k/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
ppc: move files referencing CPU to hw/ppc/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
ppc: move more files to hw/ppc

These sPAPR files do not implement devices, move them over.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
sh: move files referencing CPU to hw/sh4/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
inc
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: make subdirectories for devices

Prepare the new directory structure.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: move target-independent files to subdirectories

This patch tackles all files that are compiled once, moving
them to subdirectories of hw/.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: move virtio devices to hw/ subdirectories

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: make all of hw/ide/ configurable via default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: make all of hw/usb/ configurable via default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: make all of hw/pci/ configurable via default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: move watchdogs to hw/watchdog, configure via default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: move MC146818RTC to hw/timer/, configure via default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: move NICs to hw/net/, configure via default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw: move block devices to hw/block/, configure via default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>