Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/625cb7376428
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #19900 from jhford/depth1

Bug 1019243 - use a depth of 1 for shallow clones of Gaia

========

https://hg.mozilla.org/integration/gaia-central/rev/3a3911118d82
Author: John Ford <john@johnford.info>
Desc: Bug 1019243 - use a depth of 1 for shallow clones of Gaia

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "a508cdce0830503c7775d519064d2fafe4f57e1c", 
+    "revision": "625cb7376428f0f9bb6617d6623960014b0ec4c9", 
     "repo_path": "/integration/gaia-central"
 }