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

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https://hg.mozilla.org/integration/gaia-2_0/rev/b35ba0c12eba
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #25378 from eliperelman/bug-1086644-v2.0

Bug 1086644 - Changing performance tests back to use legacy screen unlocking

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https://hg.mozilla.org/integration/gaia-2_0/rev/e4561d0e89dd
Author: Eli Perelman <eli@eliperelman.com>
Desc: Bug 1086644 - Changing performance tests back to use legacy screen unlocking
Bumping manifests a=b2g-bump