dm: Reorganize ACRN DM directory.

The current dm, all non-pci and non-acpi related files are put into
hw/platform directory. This is actually disturbed the meaning of
*platform*. The platform devices are mean of board and SoC specific
non-PCI devices, like usb devices, etc.

This patch refines the ACRN dm directory architecture.

For some common device logic files, likes block_if.c/uart_core.c or
usb_core.c. They will move to hw/ directly.

For platform architecture depended files, create arch/ under root dir.
And create sub-dir arch/x86 for x86 architecture, will create more
architectures in future. The pm.c will move to this new dir.

The hw/acpi will be moved to hw/platform/acpi due to acpi also be
considered as part of platform.

Signed-off-by: Yu Wang <yu1.wang@intel.com>

devicemodel/Makefile

@@ -50,21 +50,22 @@ LIBS += -lz
 LIBS += -luuid
 
 # hw
+SRCS += hw/block_if.c
+SRCS += hw/usb_core.c
+SRCS += hw/uart_core.c
 SRCS += hw/pci/virtio/virtio.c
 SRCS += hw/pci/virtio/virtio_kernel.c
 SRCS += hw/platform/usb_mouse.c
-SRCS += hw/platform/usb_core.c
 SRCS += hw/platform/atkbdc.c
 SRCS += hw/platform/ps2mouse.c
 SRCS += hw/platform/rtc.c
 SRCS += hw/platform/ps2kbd.c
-SRCS += hw/platform/pm.c
-SRCS += hw/platform/uart_core.c
-SRCS += hw/platform/block_if.c
 SRCS += hw/platform/ioapic.c
 SRCS += hw/platform/cmos_io.c
 SRCS += hw/platform/ioc.c
 SRCS += hw/platform/ioc_cbc.c
+SRCS += hw/platform/acpi/acpi.c
+SRCS += hw/platform/acpi/acpi_pm.c
 SRCS += hw/pci/wdt_i6300esb.c
 SRCS += hw/pci/lpc.c
 SRCS += hw/pci/xhci.c
@@ -81,8 +82,6 @@ SRCS += hw/pci/virtio/virtio_hyper_dmabuf.c
 SRCS += hw/pci/virtio/virtio_heci.c
 SRCS += hw/pci/irq.c
 SRCS += hw/pci/uart.c
-SRCS += hw/acpi/acpi.c
-SRCS += hw/acpi/acpi_pm.c
 
 # core
 #SRCS += core/bootrom.c
@@ -103,6 +102,10 @@ SRCS += core/mptbl.c
 SRCS += core/main.c
 SRCS += core/hugetlb.c
 
+# arch
+SRCS += arch/x86/pm.c
+
+
 OBJS := $(patsubst %.c,$(DM_OBJDIR)/%.o,$(SRCS))
 
 HEADERS := $(shell find $(BASEDIR) -name '*.h')