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

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https://hg.mozilla.org/integration/gaia-central/rev/16672d155555
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #18705 from TheoChevalier/merge-test-locales-2.0-dev

[Bug 1001220] [l10n][2.0] Merge test locales in Github for developers

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https://hg.mozilla.org/integration/gaia-central/rev/00480ca3a62b
Author: TheoChevalier <theo.chevalier11@gmail.com>
Desc: [Bug 1001220] [l10n][2.0] Merge test locales in Github for developers

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "949df3be29b432b53a4ee232e7fd19881b5aca6b", 
+    "revision": "16672d155555bc730d998621efe34f2b5bbd66b7", 
     "repo_path": "/integration/gaia-central"
 }