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

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https://hg.mozilla.org/integration/gaia-2_1/rev/c6c1308274f9
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #26333 from viorelaioia/bug_1065973

Bug 1065973 - Change lock method to turn screen off/on

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https://hg.mozilla.org/integration/gaia-2_1/rev/49dd2a95ed12
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 1065973 - Change lock method to turn screen off/on
Bumping manifests a=b2g-bump