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

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https://hg.mozilla.org/integration/gaia-central/rev/d5b51574748e
Author: Fernando Campo <fernando.campo@telefonica.com>
Desc: Merge pull request #19961 from fcampo/contact-dup-img-1019431

Bug 1019431 - The contacts duplicate screen shows an incorrect border on photos (r=jmcf)

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https://hg.mozilla.org/integration/gaia-central/rev/03e476252eef
Author: Fernando Campo <fernando.campo@telefonica.com>
Desc: Bug 1019431 - The contacts duplicate screen shows an incorrect border on photos
Bumping manifests a=b2g-bump