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

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https://hg.mozilla.org/integration/gaia-central/rev/c7fbad82fc68
Author: Fernando Rodríguez Sela <frsela@tid.es>
Desc: Merge pull request #18985 from frsela/STK/Bug1004298

Bug 1004298 - STK PLAY_TONE fails when text is added to the proactive command

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https://hg.mozilla.org/integration/gaia-central/rev/dc89a13e9a3a
Author: Fernando Rodriguez Sela <frsela@tid.es>
Desc: Bug 1004298 - STK PLAY_TONE fails when text is added to the proactive command
Bumping manifests a=b2g-bump