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

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https://hg.mozilla.org/integration/gaia-central/rev/7ba9931853a9
Author: James Burke <jrburke@gmail.com>
Desc: Merge pull request #20320 from jrburke/bug1022527-email-bcc-truncate

Bug 1022527 - [B2G][Email] address in bcc field will be truncated r=mcav

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https://hg.mozilla.org/integration/gaia-central/rev/ff9e280d16a0
Author: jrburke <jrburke@gmail.com>
Desc: Bug 1022527 - [B2G][Email] When type mail address in to, cc and bcc fields, the address in bcc field will be truncated
Bumping manifests a=b2g-bump