Temporarily disable ld --fatal-warnings.

external/netcat/netcat.c:323: warning: warning: mktemp() possibly
used unsafely; consider using mkstemp()

Change-Id: I3f1a1a29009f87d4df1224c8588e4496a78b2ef4
diff --git a/Android.mk b/Android.mk
index 027cb98..3034bca 100644
--- a/Android.mk
+++ b/Android.mk
@@ -15,4 +15,7 @@
 
 LOCAL_MODULE:=nc
 
+# gold in binutils 2.22 will warn about the usage of mktemp
+LOCAL_LDFLAGS += -Wl,--no-fatal-warnings
+
 include $(BUILD_EXECUTABLE)