Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/d47d5ef7db4e
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #10550 from flodolo/bug886028

Bug 886028 - Fix localizability of "All-day Events" label in Calendar

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https://hg.mozilla.org/integration/gaia-central/rev/9170bb733bf8
Author: Francesco Lodolo <flod@lodolo.net>
Desc: Bug 886028 - Fix localizability of "All-day Events" label in Calendar

Misspelled data-l10n-id

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "9ffb39070db84166877230784b8a44848879c3c0", 
+    "revision": "d47d5ef7db4e97d7de6c1e6a9a8874ec76c2eb9f", 
     "repo_path": "/integration/gaia-central"
 }