flags: Assign wake-on-wifi-packet.

Add owners for the wake-on-wifi-packet flag, which is
aparently still being evaluated for supporting Android Doze
in ARC.

Bug: None
Change-Id: I07ca507bd6045501d8dbb97abe52c8432d241648
Reviewed-on: https://chromium-review.googlesource.com/c/1482000
Auto-Submit: Dan Erat <derat@chromium.org>
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634661}

chrome/browser/flag-metadata.json

@@ -3149,7 +3149,7 @@
   },
   {
     "name": "wake-on-wifi-packet",
-    // "owners": [ "your-team" ],
+    "owners": [ "abhishekbh", "chirantan" ],
     "expiry_milestone": 76
   },
   {