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

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https://hg.mozilla.org/integration/gaia-central/rev/9fd8ef3b7fa0
Author: Evyatar Amitay <evyatron@gmail.com>
Desc: Merge pull request #12640 from EverythingMe/923420-translate-more-apps

[Bug 923420] Add 'More Apps' to l10n [r=crdlc]

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https://hg.mozilla.org/integration/gaia-central/rev/24f079bc0cff
Author: Evyatar Amitay <evyatron@gmail.com>
Desc: [Bug 923420] Add 'More Apps' to l10n [r=crdlc]