Bumping gaia.json for 4 gaia-central revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/d5c34dab5cc9
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #12383 from crh0716/904345

Bug 904345 - Handle the case of the 'ready' state r=kaze

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https://hg.mozilla.org/integration/gaia-central/rev/0e19d60d2aa3
Author: Arthur Chen <crh0716@gmail.com>
Desc: Bug 904345 - Handle the case of the 'ready' state
1. Add a case for the 'ready' state.
2. Clear the text content and l10n data if l10nId is empty.

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https://hg.mozilla.org/integration/gaia-central/rev/15e8656c8888
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #12256 from cctuan/903919

Bug 903919 - add support for large device

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https://hg.mozilla.org/integration/gaia-central/rev/43e8d15329f7
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 903919 - add support for large device