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

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https://hg.mozilla.org/integration/gaia-1_3/rev/2a385184012b
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #18732 from jaoo/998914-v1.3

Bug 998914 - [v1.3][Settings] Cannot preselect the APN correctly if ther...

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https://hg.mozilla.org/integration/gaia-1_3/rev/ffd5cf13eb93
Author: Jose Antonio Olivera Ortega <josea.olivera@gmail.com>
Desc: Bug 998914 - [v1.3][Settings] Cannot preselect the APN correctly if there are several APNs with the same carrier name (follow-up bug 991628)
Bumping manifests a=b2g-bump