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

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https://hg.mozilla.org/integration/gaia-central/rev/4aee3b359002
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #15111 from fabi1cazenave/pinDialogOptions-bug953150

Bug 953150 - [DSDS] Unable to Reset PIN2 from FDN menu r=crh0716

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https://hg.mozilla.org/integration/gaia-central/rev/d78500b717d6
Author: Fabien Cazenave <fabien@cazenave.cc>
Desc: Bug 953150 - [DSDS] Unable to Reset PIN2 from FDN menu