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

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https://hg.mozilla.org/integration/gaia-central/rev/2bf5934c050e
Author: Guillaume C. Marty <edo999@gmail.com>
Desc: Merge pull request #21118 from gmarty/Bug-1027391-SIM-lock-shows-transparent-status-bar

Bug 1027391 - SIM lock shows a transparent status bar

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https://hg.mozilla.org/integration/gaia-central/rev/e119e62a9890
Author: Guillaume Marty <edo999@gmail.com>
Desc: Bug 1027391 - SIM lock shows a transparent status bar
Bumping manifests a=b2g-bump