Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/63ea62ea5a2e
Author: Dave Hunt <dave.hunt@gmail.com>
Desc: Bug 1106571 - Support new storage structure for IndexedDB when populating reference workloads. r=jvarga

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "320adc0150b1252bd20576772099722838c46dc2", 
+    "revision": "63ea62ea5a2e64f702d47b2e13ebdd73e7327e4c", 
     "repo_path": "integration/gaia-central"
 }