qdev/isa: convert ne2000

Also split the isa bits into a separate source file, so we don't drag in
a dependency for isa-bus.o for machines which want ne2k_pci only.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/Makefile.target b/Makefile.target
index 5642697..0fe8b6a 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -189,13 +189,14 @@
 obj-i386-y += cirrus_vga.o apic.o ioapic.o parallel.o acpi.o piix_pci.o
 obj-i386-y += usb-uhci.o vmmouse.o vmport.o vmware_vga.o hpet.o
 obj-i386-y += device-hotplug.o pci-hotplug.o smbios.o wdt_ib700.o
+obj-i386-y += ne2000-isa.o
 
 # shared objects
 obj-ppc-y = ppc.o ide/core.o ide/isa.o ide/pci.o ide/macio.o
 obj-ppc-y += vga.o vga-pci.o $(sound-obj-y) dma.o isa-bus.o openpic.o
 # PREP target
 obj-ppc-y += pckbd.o serial.o i8259.o i8254.o fdc.o mc146818rtc.o
-obj-ppc-y += prep_pci.o ppc_prep.o
+obj-ppc-y += prep_pci.o ppc_prep.o ne2000-isa.o
 # Mac shared devices
 obj-ppc-y += macio.o cuda.o adb.o mac_nvram.o mac_dbdma.o
 # OldWorld PowerMac
@@ -217,7 +218,7 @@
 obj-mips-y += ide/core.o ide/isa.o ide/pci.o
 obj-mips-y += gt64xxx.o pckbd.o fdc.o mc146818rtc.o usb-uhci.o acpi.o ds1225y.o
 obj-mips-y += piix4.o parallel.o cirrus_vga.o isa-bus.o pcspk.o $(sound-obj-y)
-obj-mips-y += mipsnet.o
+obj-mips-y += mipsnet.o ne2000-isa.o
 obj-mips-y += pflash_cfi01.o
 obj-mips-y += vmware_vga.o