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

========

https://hg.mozilla.org/integration/gaia-central/rev/fedba450c384
Author: Corey Frang <gnarf37@gmail.com>
Desc: Bug 910168 - When long pressing u key in Spanish keyboard, the first suggested letter is ü, it should be ú - r=rlu

- Switch the order of ü and ú in the alternates

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "075655d9fdfcbe8e3031164cd628a487f49ce6a1", 
+    "revision": "fedba450c3841575d3f3414e41143beb900c5528", 
     "repo_path": "/integration/gaia-central"
 }