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

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https://hg.mozilla.org/integration/gaia-central/rev/9c025d2ed6dd
Author: Zac <zcampbell@mozilla.com>
Desc: Merge pull request #21365 from mschwart/bug1031029

Bug 1031029 - Unlock the lockscreen only if enabled

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https://hg.mozilla.org/integration/gaia-central/rev/4ef2c7f6048c
Author: Michael Schwartz <mschwart@codeaurora.org>
Desc: Bug 1031029 - Unlock the lockscreen only if enabled
Bumping manifests a=b2g-bump