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/vio.c b/arch/powerpc/platforms/iseries/vio.c
index c0f7d2e..c64741e 100644
--- a/arch/powerpc/platforms/iseries/vio.c
+++ b/arch/powerpc/platforms/iseries/vio.c
@@ -20,7 +20,7 @@
 #include <asm/iSeries/vio.h>
 #include <asm/iSeries/HvTypes.h>
 #include <asm/iSeries/HvLpConfig.h>
-#include <asm/iSeries/HvCallXm.h>
+#include <asm/iseries/hv_call_xm.h>
 
 struct device *iSeries_vio_dev = &vio_bus_device.dev;
 EXPORT_SYMBOL(iSeries_vio_dev);