powerpc: Move iSeries_pci.c to powerpc/platform/iseries

and rename it to pci.c.  This also required moving
arch/ppc64/kernel/pci.h into include/asm-powerpc (called
ppc-pci.h.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
diff --git a/arch/ppc64/kernel/rtas_pci.c b/arch/ppc64/kernel/rtas_pci.c
index 4d920dd..20361bc 100644
--- a/arch/ppc64/kernel/rtas_pci.c
+++ b/arch/ppc64/kernel/rtas_pci.c
@@ -39,8 +39,7 @@
 #include <asm/iommu.h>
 #include <asm/rtas.h>
 #include <asm/mpic.h>
-
-#include "pci.h"
+#include <asm/ppc-pci.h>
 
 /* RTAS tokens */
 static int read_pci_config;