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

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https://hg.mozilla.org/integration/gaia-central/rev/4964207405a8
Author: lissyx <lissyx+github@lissyx.dyndns.org>
Desc: Merge pull request #31615 from lissyx/bug1164713

Bug 1164713 - Force FMD logged-in setting r=mgoodwin

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https://hg.mozilla.org/integration/gaia-central/rev/903f1af0a769
Author: Alexandre Lissy <lissyx+github@lissyx.dyndns.org>
Desc: Bug 1164713 - Force FMD logged-in setting r=mgoodwin

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "cccb142fe8b759d7866b5d91d012b7d134fb9153", 
+        "git_revision": "8acefaf7e79a762c4e84d7c5e6fb5e07f6277aa3", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "026e92452db013e21c9ca3260ea5ec4a9c4b507f", 
+    "revision": "4964207405a8bb2545fc59d576a8f0be7890c0c1", 
     "repo_path": "integration/gaia-central"
 }