Bumping gaia.json for 3 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/d816bb323b9c
Author: crh0716 <crh0716@gmail.com>
Desc: Revert "Bug 872976 - Delay the timing of restoring connection to decrease the failure rate"

This reverts commit 9db0247970e19fb0d57e3eed4fa5bbbfd79f1ebe.

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https://hg.mozilla.org/integration/gaia-central/rev/0f1e25090cbb
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #10501 from crdlc/bug-884728

Bug 884728 - [Facebook] Linking feature is broken deleting all local inf...

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https://hg.mozilla.org/integration/gaia-central/rev/b150f7f1e531
Author: crdlc <crdlc@tid.es>
Desc: Bug 884728 - [Facebook] Linking feature is broken deleting all local information for a contact

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "aa565b81260a6253b12a9659915e3c4c300c5942", 
+    "revision": "d816bb323b9c9d7e59b3c8dfc2c62d3901864b46", 
     "repo_path": "/integration/gaia-central"
 }