Move fdtrack APIs to LLNDK.

Test: logcat -c; fdtrack_test; logcat -d
Change-Id: Ib6f75a7c8bbc4d6efa0708dcbbfe4ad3c0641022
(cherry picked from commit 759625072270f5b6940dae40c8039867a08eff12)
diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index dddd84c..2ca4b21 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1484,9 +1484,6 @@
   global:
     __mempcpy_chk;
     __tls_get_addr; # arm64
-    android_fdtrack_compare_exchange_hook;
-    android_fdtrack_get_enabled;
-    android_fdtrack_set_enabled;
     call_once;
     cnd_broadcast;
     cnd_destroy;
@@ -1755,6 +1752,9 @@
     __system_property_set_filename;
     __system_property_update;
     android_fdsan_get_fd_table;
+    android_fdtrack_compare_exchange_hook; # llndk
+    android_fdtrack_get_enabled; # llndk
+    android_fdtrack_set_enabled; # llndk
     android_net_res_stats_get_info_for_net;
     android_net_res_stats_aggregate;
     android_net_res_stats_get_usable_servers;