[SPARC32]: Remove iommu from struct sbus_bus and use archdata like sparc64.

Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
index ac352eb..e2d02fd 100644
--- a/arch/sparc/kernel/ebus.c
+++ b/arch/sparc/kernel/ebus.c
@@ -238,6 +238,7 @@
 	sd = &dev->ofdev.dev.archdata;
 	sd->prom_node = dp;
 	sd->op = &dev->ofdev;
+	sd->iommu = dev->bus->ofdev.dev.parent->archdata.iommu;
 
 	dev->ofdev.node = dp;
 	dev->ofdev.dev.parent = &dev->bus->ofdev.dev;