Fix missing symbol for debug malloc.

Bug: 18686270
Change-Id: I800a6f0940060218413df652d74aca91f6a339f8
diff --git a/libc/Android.mk b/libc/Android.mk
index 6863151..cc1585c 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -1178,7 +1178,7 @@
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 # Only need this for arm since libc++ uses its own unwind code that
 # doesn't mix with the other default unwind code.
-LOCAL_STATIC_LIBRARIES_arm := libunwind_llvm
+LOCAL_STATIC_LIBRARIES_arm := libunwind_llvm libc++abi
 LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
 
 # Don't install on release build