ppc: Use the merged of_device.c from arch/powerpc/kernel

Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile
index b8d08f3..f6a2f19 100644
--- a/arch/ppc/syslib/Makefile
+++ b/arch/ppc/syslib/Makefile
@@ -39,7 +39,7 @@
 ifeq ($(CONFIG_8xx),y)
 obj-$(CONFIG_PCI)		+= qspan_pci.o i8259.o
 endif
-obj-$(CONFIG_PPC_OF)		+= prom_init.o prom.o of_device.o
+obj-$(CONFIG_PPC_OF)		+= prom_init.o prom.o
 obj-$(CONFIG_PPC_PMAC)		+= open_pic.o indirect_pci.o
 obj-$(CONFIG_POWER4)		+= open_pic2.o
 obj-$(CONFIG_PPC_CHRP)		+= open_pic.o indirect_pci.o i8259.o