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

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https://hg.mozilla.org/integration/gaia-central/rev/bfe996506d2b
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #19035 from zacc/bug_1007055

Bug 1007055 - Remove keyboard.ftu.enabled setting from gaiatest

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https://hg.mozilla.org/integration/gaia-central/rev/d8fca5dc72a7
Author: Zac <zcampbell@mozilla.com>
Desc: Bug 1007055 - Remove keyboard.ftu.enabled setting from gaiatest
Bumping manifests a=b2g-bump