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

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https://hg.mozilla.org/integration/gaia-central/rev/1a73e2fbac94
Author: Zibi Braniecki <zbigniew.braniecki@gmail.com>
Desc: Merge pull request #19966 from zbraniecki/1019970-connstate-l10n

Bug 1019970 - Clean up connstate l10n. r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/b9bbb0f81b88
Author: Zbigniew Braniecki <gandalf@mozilla.com>
Desc: Bug 1019970 - Clean up connstate l10n
Bumping manifests a=b2g-bump