Add libdl into libc_malloc_debug_leak build

Otherwise libc_malloc_debug_leak.so is failed to load runtime in x86
case

Change-Id: I8207ce06d1ec17b233f4e4fcfdd2b161673b4fa8
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
diff --git a/libc/Android.mk b/libc/Android.mk
index c3759db..65a738a 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -916,7 +916,7 @@
 LOCAL_MODULE:= libc_malloc_debug_leak
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
-LOCAL_SHARED_LIBRARIES := libc
+LOCAL_SHARED_LIBRARIES := libc libdl
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 LOCAL_ALLOW_UNDEFINED_SYMBOLS := true