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

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https://hg.mozilla.org/integration/gaia-central/rev/04552334535c
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Merge pull request #11914 from davidflanagan/bug905856

Bug 905856: support locked media files r=johu,dkuo,hsivonen,kaze

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https://hg.mozilla.org/integration/gaia-central/rev/3b857a772d69
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Bug 905856: support for forward locked wallpaper, ringtones and songs
Bumping gaia.json for 2 gaia-central revision(s) a=NPOTB

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https://hg.mozilla.org/integration/gaia-central/rev/73f31b3b0853
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #12319 from rnowm/916046

Bug 916046 - Find duplicates button needs an icon

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https://hg.mozilla.org/integration/gaia-central/rev/f336f7c82927
Author: rnowm <arnau@arnaumarch.com>
Desc: Bug 916046 - Find duplicates button needs an icon