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

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https://hg.mozilla.org/integration/gaia-2_1/rev/16b52d5318a3
Author: viorelaioia <viorela.ioia@softvision.ro>
Desc: Merge pull request #25570 from chirarobert/uplift_calls

Bug 1086571 - Investigate and fix test_call_log_all_calls intermittent f...

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https://hg.mozilla.org/integration/gaia-2_1/rev/99f0b361ab8b
Author: Robert Chira <robertchira@P5075.(none)>
Desc: Bug 1086571 - Investigate and fix test_call_log_all_calls intermittent failuresI hate this test
Bumping manifests a=b2g-bump