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

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https://hg.mozilla.org/integration/gaia-central/rev/4e58255bfb9d
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Merge pull request #24889 from comoyo/bug1073870-v3

Bug 1073870 - Autocorrect word does not get cleared when moving the cursor around. r=RudyL

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https://hg.mozilla.org/integration/gaia-central/rev/bf98bdd77ca6
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Bug 1073870 - Autocorrect word does not get cleared when moving the cursor around
Bumping manifests a=b2g-bump