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

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https://hg.mozilla.org/integration/gaia-central/rev/d811e6819e56
Author: Fernando Campo <fernando.campo@telefonica.com>
Desc: Merge pull request #18535 from fcampo/split-fte-comms-import-999436-2

Bug 999436 - Import services dependencies - 2-utilities (r=jmcf)

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https://hg.mozilla.org/integration/gaia-central/rev/5f255b63cf90
Author: Fernando Campo <fernando.campo@telefonica.com>
Desc: Bug 999436 - Import services dependencies
Part 2: Utilities

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "72091c26237f9e7039c78978b3c011d97a3616b4", 
+    "revision": "d811e6819e5646fe5affe653e3d45b9376df6b17", 
     "repo_path": "/integration/gaia-central"
 }