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

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https://hg.mozilla.org/integration/gaia-central/rev/3fc5f358bc7b
Author: Germán Toro del Valle <gtorodelvalle@gmail.com>
Desc: Merge pull request #25322 from gtorodelvalle/callscreen-bug-1082139-getcomputedstyle-is-null

Bug 1082139 - JavascriptException: JavascriptException: TypeError: window.getComputedStyle(...) is null at: app://callscreen.gaiamobile.org/gaia_build_defer_index.js line: 146

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https://hg.mozilla.org/integration/gaia-central/rev/e2e6e5016488
Author: German Toro del Valle <gtorodelvalle@gmail.com>
Desc: Bug 1082139 - JavascriptException: JavascriptException: TypeError: window.getComputedStyle(...) is null at: app://callscreen.gaiamobile.org/gaia_build_defer_index.js line: 146
Bumping manifests a=b2g-bump