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

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https://hg.mozilla.org/integration/gaia-central/rev/019263c947c7
Author: Dominic Kuo <dkuo@mozilla.com>
Desc: Merge pull request #11761 from dominickuo/bug-891014

Bug 891014 - Show play icon on the status bar when music is playing, r=alivedise

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https://hg.mozilla.org/integration/gaia-central/rev/267046e12bc9
Author: Dominic Kuo <dkuo@mozilla.com>
Desc: Bug 891014 - Show play icon on the status bar when music is playing