Bumping gaia.json for 6 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/c201d63425a6
Author: Fernando Jiménez Moreno <ferjmoreno@gmail.com>
Desc: Merge pull request #10708 from ferjm/mmiresultfinal

MMI localization support (multiple commits)

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https://hg.mozilla.org/integration/gaia-central/rev/110a490561bb
Author: Fernando Jiménez <ferjmoreno@gmail.com>
Desc: Bug 879685 - (mmi-localization-cw) [MMI] Localization of Call Waiting functionality. r=ferjm

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https://hg.mozilla.org/integration/gaia-central/rev/a24294e33110
Author: Fernando Jiménez <ferjmoreno@gmail.com>
Desc: Bug 879694 - (mmi-localization-cb) [MMI] Localization of Call Barring functionality. r=rik

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https://hg.mozilla.org/integration/gaia-central/rev/f21ed81960ce
Author: Jose Antonio Olivera Ortega <josea.olivera@gmail.com>
Desc: Bug 879680 - (mmi-result-cf) [MMI] Use MMIResult for Call Forwarding related functionality. r=ferjm

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https://hg.mozilla.org/integration/gaia-central/rev/acea7c21c021
Author: Fernando Jiménez <ferjmoreno@gmail.com>
Desc: Bug 874000 - (mmi-result-pin) [MMI] Use MMIResult for PIN/PIN2/PUK related functionality. r=rik

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https://hg.mozilla.org/integration/gaia-central/rev/bb0646386fb4
Author: Fernando Jiménez <ferjmoreno@gmail.com>
Desc: Bug 884349 - [MMI] Use MMIResult for get IMEI. r=rik

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "a65adcda68175ff7a05ad337f1ac8a746a408b45", 
+    "revision": "c201d63425a6866b1703ab4efbc95789e61748ff", 
     "repo_path": "/integration/gaia-central"
 }