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

========

https://hg.mozilla.org/integration/gaia-central/rev/7f029afe33f5
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1235884 - Disable apps/system/test/marionette/notification_events_test.js

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "5b320cf03ac7ad9a2b76b5848ccfd6f210c3a442", 
+        "git_revision": "e6505be305ed6467f4c58a4a8c9c0f79df3708db", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "2c737913624e524826b16b3dfb99ba8d5c346574", 
+    "revision": "7f029afe33f5c6e4eb9cd6f580991b8ab3258c4f", 
     "repo_path": "integration/gaia-central"
 }