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

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https://hg.mozilla.org/integration/gaia-central/rev/cbaa49bbefdc
Author: gitmai <mri@tid.es>
Desc: Merge pull request #21257 from gitmai/bug-1032836-event-listener-error-testing

Bug 1032836 - Intermittent image_loader_test.js | Image Loader Test Suit...
r=crdlc

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https://hg.mozilla.org/integration/gaia-central/rev/ec9aabc8f53c
Author: mai <mri@tid.es>
Desc: Bug 1032836 - Intermittent image_loader_test.js | Image Loader Test Suite > imgsLoader resuming > resuming calls new Image() | expected Image to be called once but was called twice

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "33d9ea721ccc3995e1e6e5cbabeab4d1ea93be9a", 
+    "revision": "cbaa49bbefdc1dad2241e3d138c1add815e52ab0", 
     "repo_path": "/integration/gaia-central"
 }