Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/80bbcc74cf4c
Author: Gabriele Svelto <gsvelto@mozilla.com>
Desc: Merge pull request #17360 from prcxuying/bug972308

Bug 972308 - Re-use the existing Audio object when playing keypad tones r=gsvelto

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https://hg.mozilla.org/integration/gaia-central/rev/be68ad31b801
Author: ying.xu <ying.xu@spreadtrum.com>
Desc: Bug 972308 [DIALER]slow response when click on dialer panel

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https://hg.mozilla.org/integration/gaia-central/rev/d783d8785066
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #17348 from qdot/985795-contact-utils-misc-unit-test-fix

Bug 985795 - Only patch required single utils function versus mocking object

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https://hg.mozilla.org/integration/gaia-central/rev/11e5b598d7f4
Author: Kyle Machulis <kyle@nonpolynomial.com>
Desc: Bug 985795 - Only patch required single utils function versus mocking object
Bumping manifests a=b2g-bump