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

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https://hg.mozilla.org/integration/gaia-central/rev/7071ce3a168a
Author: Guillaume Cedric Marty <edo999@gmail.com>
Desc: Merge pull request #18550 from gmarty/bug-949439

Bug 949439 - Add progress bar to SIM Manager

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https://hg.mozilla.org/integration/gaia-central/rev/80907e1b1ae3
Author: Guillaume Marty <edo999@gmail.com>
Desc: Bug 949439 - Add progress bar to SIM Manager
Bumping manifests a=b2g-bump