Revert of Removes android_dbg bot from commit queue (patchset #1 id:1 of https://codereview.webrtc.org/2112263002/ )

Reason for revert:
https://codereview.chromium.org/2118483002/ is now submitted and the new machines are online, although one of them needs device authorization (see https://bugs.chromium.org/p/chromium/issues/detail?id=612195).

Original issue's description:
> Removes android_dbg bot from commit queue
> because it is currently broken
>
> TBR=kjellander@webrtc.org
> NOTRY=true
>
> Committed: https://crrev.com/6907d04f903e0ad7d0cdeeebc0ffd427b83f3c53
> Cr-Commit-Position: refs/heads/master@{#13359}

TBR=danilchap@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.webrtc.org/2118013002
Cr-Commit-Position: refs/heads/master@{#13373}
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 5a0e87f..bda5626 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -26,6 +26,7 @@
   try_job {
     buckets {
       name: "master.tryserver.webrtc"
+      builders { name: "android_dbg" }
       builders { name: "android_rel" }
       builders { name: "android_arm64_rel" }
       builders { name: "android_clang_dbg" }