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

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https://hg.mozilla.org/integration/gaia-central/rev/81eaacc98125
Author: Fernando Campo <fernando.campo@telefonica.com>
Desc: Merge pull request #20579 from fcampo/operator-variant-jshint-1026034

Bug 1026034 - [OperatorVariant] Add jshint setup (r=cjc)

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https://hg.mozilla.org/integration/gaia-central/rev/0cf63bf3d544
Author: Fernando Campo <fernando.campo@telefonica.com>
Desc: Bug 1026034 - [OperatorVariant] Add jshint setup

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "15703ea5c432708b92c7df06a474d68b58285376", 
+    "revision": "81eaacc98125da99fe9fdad6abda379bb4bbea31", 
     "repo_path": "/integration/gaia-central"
 }