merge filename and modify references to iseries/hv_call_xm.h

Signed-off-by: Kelly Daly <kelly@au.ibm.com>
diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c
index 959e59f..a39b7a7 100644
--- a/arch/powerpc/platforms/iseries/pci.c
+++ b/arch/powerpc/platforms/iseries/pci.c
@@ -36,7 +36,7 @@
 #include <asm/iommu.h>
 #include <asm/abs_addr.h>
 
-#include <asm/iSeries/HvCallXm.h>
+#include <asm/iseries/hv_call_xm.h>
 #include <asm/iSeries/mf.h>
 
 #include <asm/ppc-pci.h>