Add Network Watchlist data file selinux policy(Used in ConfigUpdater)

Bug: 63908748
Test: Able to boot
Change-Id: I14d8856d7aac7be9d1f26ecf5bfff69ea5ee9607
diff --git a/private/file_contexts b/private/file_contexts
index 7d1457a..992bdc3 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -384,6 +384,7 @@
 /data/misc/logd(/.*)?           u:object_r:misc_logd_file:s0
 /data/misc/media(/.*)?          u:object_r:media_data_file:s0
 /data/misc/net(/.*)?            u:object_r:net_data_file:s0
+/data/misc/network_watchlist(/.*)? u:object_r:network_watchlist_data_file:s0
 /data/misc/recovery(/.*)?       u:object_r:recovery_data_file:s0
 /data/misc/shared_relro(/.*)?   u:object_r:shared_relro_file:s0
 /data/misc/sms(/.*)?            u:object_r:radio_data_file:s0