Bumping gaia.json for 1 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/37fdbc80145b
Author: Rick Waldron <waldron.rick@gmail.com>
Desc: Bug 920546 Uplift supplement: compareDialables => probablyMatches r=julien

This uplitfts the part of bug 877718 that renames compareDialables to
probablyMatches, which we uses in this patch.

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>