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

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https://hg.mozilla.org/integration/gaia-central/rev/9ca167a0c59c
Author: Luke Chang <lchang@mozilla.com>
Desc: Merge pull request #13124 from luke-chang/914664_keys_too_close

Bug 914664 - Logcat flooded with “keys too close” warnings, r=rudylu

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https://hg.mozilla.org/integration/gaia-central/rev/c81ed8d66a28
Author: Luke Chang <lchang@mozilla.com>
Desc: Bug 914664 - Logcat flooded with “keys too close” warnings