merge filename and modify references to iseries/hv_call.h

Signed-off-by: Kelly Daly <kelly@au.ibm.com>
diff --git a/arch/powerpc/lib/locks.c b/arch/powerpc/lib/locks.c
index 3794715..2a912f4 100644
--- a/arch/powerpc/lib/locks.c
+++ b/arch/powerpc/lib/locks.c
@@ -22,7 +22,7 @@
 /* waiting for a spinlock... */
 #if defined(CONFIG_PPC_SPLPAR) || defined(CONFIG_PPC_ISERIES)
 #include <asm/hvcall.h>
-#include <asm/iSeries/HvCall.h>
+#include <asm/iseries/hv_call.h>
 
 void __spin_yield(raw_spinlock_t *lock)
 {