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

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https://hg.mozilla.org/integration/gaia-central/rev/6f1190af1ca6
Author: Diego Marcos <diego.marcos@gmail.com>
Desc: Merge pull request #22847 from dmarcos/bug1049259master

Bug 1049259 - [B2G][Notes] Cannot attach a picture directly from the cam...

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https://hg.mozilla.org/integration/gaia-central/rev/4e5070ac169a
Author: Diego Marcos <diego.marcos@gmail.com>
Desc: Bug 1049259 - [B2G][Notes] Cannot attach a picture directly from the camera when creating a new note
Bumping manifests a=b2g-bump