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

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https://hg.mozilla.org/integration/gaia-central/rev/328e426e5a49
Author: Yura Zenevich <yura.zenevich@gmail.com>
Desc: Merge pull request #23737 from yzen/bug-1063039

Bug 1063039 - update playing icon only if the audio channel actually cha...

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https://hg.mozilla.org/integration/gaia-central/rev/f58b5b7de145
Author: Yura Zenevich <yzenevich@mozilla.com>
Desc: Bug 1063039 - update playing icon only if the audio channel actually changes.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "e51e4db9e6cd4e19627c3160641f06d511f2543f", 
+    "revision": "328e426e5a498e0b692006bc045e96c49960c8be", 
     "repo_path": "/integration/gaia-central"
 }