Add dcsctp_unittests to gn_isolate_map.

Config to allow dcsctp_unittests to be isolated and run on
swarming.

Bug: webrtc:12614
Change-Id: I68a8764efe87c7c31340971382c59499dd2de4d2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/213351
Reviewed-by: Andrey Logvin <landrey@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33599}
diff --git a/tools_webrtc/mb/gn_isolate_map.pyl b/tools_webrtc/mb/gn_isolate_map.pyl
index dba0d97..01993a8 100644
--- a/tools_webrtc/mb/gn_isolate_map.pyl
+++ b/tools_webrtc/mb/gn_isolate_map.pyl
@@ -51,6 +51,10 @@
     "label": "//common_video:common_video_unittests",
     "type": "console_test_launcher",
   },
+  "dcsctp_unittests": {
+    "label": "//net/dcsctp:dcsctp_unittests",
+    "type": "console_test_launcher",
+  },
   "isac_fix_test": {
     "label": "//modules/audio_coding:isac_fix_test",
     "type": "console_test_launcher",