powerpc: move iSeries/iSeries_pci.h to platforms/iseries

The only real user of this file outside platforms/iseries was
drivers/net/iseries_veth.c but all it wanted was ISERIES_HV_ADDR()
so we move that to abs_addr.h (and lowercase it).

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
diff --git a/include/asm-ppc64/pci-bridge.h b/include/asm-ppc64/pci-bridge.h
index 56863df..01bffca 100644
--- a/include/asm-ppc64/pci-bridge.h
+++ b/include/asm-ppc64/pci-bridge.h
@@ -2,6 +2,7 @@
 #ifndef _ASM_PCI_BRIDGE_H
 #define _ASM_PCI_BRIDGE_H
 
+#include <linux/config.h>
 #include <linux/pci.h>
 #include <linux/list.h>