merge filename and modify references to iseries/hv_call.h

Signed-off-by: Kelly Daly <kelly@au.ibm.com>
diff --git a/arch/powerpc/platforms/iseries/hvlog.c b/arch/powerpc/platforms/iseries/hvlog.c
index f61e2e9..5a89b48 100644
--- a/arch/powerpc/platforms/iseries/hvlog.c
+++ b/arch/powerpc/platforms/iseries/hvlog.c
@@ -9,7 +9,7 @@
 
 #include <asm/page.h>
 #include <asm/abs_addr.h>
-#include <asm/iSeries/HvCall.h>
+#include <asm/iseries/hv_call.h>
 #include <asm/iSeries/HvCallSc.h>
 #include <asm/iSeries/HvTypes.h>