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

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https://hg.mozilla.org/integration/gaia-central/rev/fe4e8987f49a
Author: albertopq <albert.pastor@gmail.com>
Desc: Merge pull request #23964 from albertopq/1063305-nfc-statusbar

Bug 1063305 - NFC icon disappear after reboot r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/b1db7763a241
Author: albertopq <apastor@mozilla.com>
Desc: Bug 1063305 - NFC icon disappear after reboot
Bumping manifests a=b2g-bump