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

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https://hg.mozilla.org/integration/gaia-central/rev/1abd6e721b3b
Author: Jan Keromnes <janx@linux.com>
Desc: Merge pull request #25774 from jankeromnes/adbstatus2

Bug 998328 - Add a remote debugging status icon. r=mhenretty

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https://hg.mozilla.org/integration/gaia-central/rev/d12b082bdc3e
Author: Jan Keromnes <janx@linux.com>
Desc: Bug 998328 - Add a remote debugging status icon. r=mhenretty
Bumping manifests a=b2g-bump