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

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https://hg.mozilla.org/integration/gaia-2_1/rev/a66e73d204c4
Author: mai <mri@tid.es>
Desc: Bug 1105170 - [FFOS2.0][Woodduck][costcontrol] data usage does not consider dual SIM scenario while switch sim card

Conflicts:
	apps/costcontrol/js/app.js

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https://hg.mozilla.org/integration/gaia-2_1/rev/752d22e24cbb
Author: Manuel Casas <manuel.casasbarrado@telefonica.com>
Desc: Bug 1088589 - [AppPermissions]Very hard to click "Hide info" to contract the info.
Bumping manifests a=b2g-bump