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

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https://hg.mozilla.org/integration/gaia-2_1/rev/3197f392e2ff
Author: Guillaume C. Marty <gmarty@users.noreply.github.com>
Desc: Merge pull request #25610 from gmarty/Bug-1082935-Fixing-scope-problem-with-bluetooth-transfer-device-name

Bug 1082935 - Fixing scope problem with bluetooth transfer device name

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https://hg.mozilla.org/integration/gaia-2_1/rev/faac66ca950f
Author: Guillaume Marty <edo999@gmail.com>
Desc: Bug 1082935 - Fixing scope problem with bluetooth transfer device name
Bumping manifests a=b2g-bump