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.
Bumping manifests a=b2g-bump