msm: 8930: include msm-specific ion header

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

Change-Id: I7abd97d3beeee7b3d5639871ebd50ebf89d87f5d
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8930.c b/arch/arm/mach-msm/board-8930.c
index 803a6ab..712ee36 100644
--- a/arch/arm/mach-msm/board-8930.c
+++ b/arch/arm/mach-msm/board-8930.c
@@ -76,7 +76,7 @@
 #include <mach/msm_xo.h>
 #include <mach/restart.h>
 
-#include <linux/ion.h>
+#include <linux/msm_ion.h>
 #include <mach/ion.h>
 #include <mach/mdm2.h>
 #include <mach/msm_rtb.h>