msm: kgsl: fix statistics for ion memory regions

The sysfs code was reading the wrong entry in the stats
array, so it printed the wrong value.

Change-Id: I26ce8bbca152a98e3dac53a9c154e52b020d5532
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
diff --git a/drivers/gpu/msm/kgsl_sharedmem.c b/drivers/gpu/msm/kgsl_sharedmem.c
index 389ed6d..7264c25 100644
--- a/drivers/gpu/msm/kgsl_sharedmem.c
+++ b/drivers/gpu/msm/kgsl_sharedmem.c
@@ -150,7 +150,7 @@
 #endif
 	MEM_ENTRY_STAT(KGSL_MEM_ENTRY_USER, user),
 #ifdef CONFIG_ION
-	MEM_ENTRY_STAT(KGSL_MEM_ENTRY_USER, ion),
+	MEM_ENTRY_STAT(KGSL_MEM_ENTRY_ION, ion),
 #endif
 };