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

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https://hg.mozilla.org/integration/gaia-central/rev/8052e5d70d2f
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #26722 from npark-mozilla/1110158

Bug 1110158:  Intermittent test_gallery_handle_valid_image_file.py AssertionError

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https://hg.mozilla.org/integration/gaia-central/rev/dcb40b43257c
Author: No-Jun <npark@mozilla.com>
Desc: Bug 1110158: Intermittent test_gallery_handle_valid_image_file.py failure fix
Bumping manifests a=b2g-bump