Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/a0809fcd4886
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #10591 from KevinGrandon/bug_886524_logging_spam

Bug 886524 - Fix CSS error/logging

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https://hg.mozilla.org/integration/gaia-central/rev/1458ef94db38
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 886524 - Fix CSS error/logging

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "72ed45c245c8eae46fbe6585c2e8e4a92901c52b", 
+    "revision": "a0809fcd4886fc33ec5cd4f2906ad37a5814f744", 
     "repo_path": "/integration/gaia-central"
 }