powerpc: Move iSeries_irq.c to powerpc/platorms/iseries

And rename it to irq.c.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

arch/powerpc/platforms/iseries/Makefile

 obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o mf.o lpevents.o \
 	hvcall.o proc.o htab.o iommu.o
-obj-$(CONFIG_PCI) += pci.o
+obj-$(CONFIG_PCI) += pci.o irq.o

arch/ppc64/kernel/iSeries_irq.c → arch/powerpc/platforms/iseries/irq.c

@@ -363,4 +363,3 @@ void virt_irq_init(void)
 {
 	return;
 }
-

arch/ppc64/kernel/Makefile

@@ -16,8 +16,7 @@ obj-y += vdso32/ vdso64/
 
 obj-$(CONFIG_PPC_OF) +=	of_device.o
 
-pci-obj-$(CONFIG_PPC_ISERIES)	+= iSeries_irq.o \
-				iSeries_VpdInfo.o
+pci-obj-$(CONFIG_PPC_ISERIES)	+= iSeries_VpdInfo.o
 pci-obj-$(CONFIG_PPC_MULTIPLATFORM)	+= pci_dn.o pci_direct_iommu.o
 
 obj-$(CONFIG_PCI)	+= pci.o pci_iommu.o iomap.o $(pci-obj-y)