msm: 7627a: include msm-specific ion header

All msm_ion clients need to use <linux/msm_ion.h> instead of
<linux/ion.h>

Change-Id: I3a1609e57c5156742300706cee698bd6e829c948
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-msm7x27a.c b/arch/arm/mach-msm/board-msm7x27a.c
index 866e777..60fbd53 100644
--- a/arch/arm/mach-msm/board-msm7x27a.c
+++ b/arch/arm/mach-msm/board-msm7x27a.c
@@ -49,7 +49,7 @@
 #include <linux/smsc911x.h>
 #include <linux/atmel_maxtouch.h>
 #include <linux/msm_adc.h>
-#include <linux/ion.h>
+#include <linux/msm_ion.h>
 #include "devices.h"
 #include "timer.h"
 #include "board-msm7x27a-regulator.h"