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

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https://hg.mozilla.org/integration/gaia-central/rev/b16291874ccd
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Merge pull request #24812 from etiennesegonzac/bug-1075290

Bug 1075290 - Prevent a race condition between turnScreenOff and turnScreenOn r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/382d4def9bef
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Bug 1075290 - Prevent a race condition between turnScreenOff and turnScreenOn
Bumping manifests a=b2g-bump