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

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https://hg.mozilla.org/integration/gaia-central/rev/f1dc0a7cbcf6
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #15235 from huchengtw-moz/gallery/Bug_951241-blue-line

Bug 951241 - [B2G][Gallery][Image Edit] Image preview in edit mode shows...,  r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/c544005abfa9
Author: John Hu <johu@mozilla.com>
Desc: Bug 951241 - [B2G][Gallery][Image Edit] Image preview in edit mode shows orange and blue horizontal lines across middle