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

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https://hg.mozilla.org/integration/gaia-central/rev/b94fc6cabb55
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1162948 - merge pull request #30004 from ferjm:bug1162948.update.sw to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/fb7adf00629a
Author: Fernando Jiménez Moreno <ferjmoreno@gmail.com>
Desc: Bug 1162948 - Update service workers list every time the panel is shown. r=jaoo

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "17406612b349d3ba877dbf20bc3ec42bf77a8b2b", 
+        "git_revision": "2e4a81d8d5855de5102525a7d6b7681616cd14aa", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "caee53ce692636c2f21b6b2206c856ce41bc7c76", 
+    "revision": "b94fc6cabb55185be4a1a23730cff8710dd871f3", 
     "repo_path": "integration/gaia-central"
 }