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

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https://hg.mozilla.org/integration/gaia-central/rev/c562dd6c65f5
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #23962 from Moz-TedC/bug-1063624-fix-attempt-2

Bug-1063624: Only call UIManager.tzInit once. r=fcampo

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https://hg.mozilla.org/integration/gaia-central/rev/8d847892444c
Author: Ted Clancy (:tedders1) <tclancy@mozilla.com>
Desc: Bug-1063624: Only call UIManager.tzInit once. r=fcampo

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "e548bf1df3142108b67425235feac75b322433d6", 
+    "revision": "c562dd6c65f5a9bc0f5515cf40ef5e412d1db149", 
     "repo_path": "/integration/gaia-central"
 }