libaac: enable integer overflow sanitization

Change-Id: I5a31467b1341dd7f5ddcc08b7f6edbf472df3da4
diff --git a/libaac/Android.mk b/libaac/Android.mk
index 3905de0..7f58414 100644
--- a/libaac/Android.mk
+++ b/libaac/Android.mk
@@ -15,6 +15,7 @@
 LOCAL_32_BIT_ONLY := true
 LOCAL_MODULE := libwfdaac
 
+LOCAL_SANITIZE := integer_overflow
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
@@ -37,4 +38,5 @@
 LOCAL_32_BIT_ONLY := true
 LOCAL_MODULE := libwfdaac_vendor
 
+LOCAL_SANITIZE := integer_overflow
 include $(BUILD_SHARED_LIBRARY)