msm8974: Use new ION API

Change-Id: Ib9c626c78484c6232c0772e7849c370029e46cea
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 3b1910c..8bb07f2 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -69,3 +69,4 @@
 TARGET_KRAIT_BIONIC_PLDSIZE := 64
 
 TARGET_USES_ION := true
+TARGET_USES_NEW_ION_API :=true