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

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https://hg.mozilla.org/integration/gaia-central/rev/2f041bec46d5
Author: Rex KM Lee <rexboy@mozilla.com>
Desc: Merge pull request #13469 from rexboy7/fix-bug907155

bug 907155 - [System] Wake phone before shutdown to prevent blocking powerOff r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/f20a34dcf483
Author: Rex Lee <rexboy@mozilla.com>
Desc: bug 907155 - [System] Wake phone before shutdown to prevent blocking powerOff