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

========

https://hg.mozilla.org/integration/gaia-central/rev/b3b8a283ac64
Author: Hubert Figuière <hub@figuiere.net>
Desc: Merge pull request #21555 from eliperelman/bug-1036448-use-manifest-as-url-with-fqdns

Bug 1036448 - Use manifest as app URL when FQDN r=hub

========

https://hg.mozilla.org/integration/gaia-central/rev/ef2481a1a51f
Author: Eli Perelman <eli@eliperelman.com>
Desc: Bug 1036448 - Use manifest as app URL when FQDN
Bumping manifests a=b2g-bump