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

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https://hg.mozilla.org/integration/gaia-central/rev/aed1eb065c43
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #18019 from yurenju/maxBuffer

Bug 992773 - maxBuffer for child_process.exec is exceeded in |make build... r=@cctuan

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https://hg.mozilla.org/integration/gaia-central/rev/7d0c35d4db39
Author: Yuren Ju <yurenju@gmail.com>
Desc: Bug 992773 - maxBuffer for child_process.exec is exceeded in |make build-test-integration|
Bumping manifests a=b2g-bump