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

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https://hg.mozilla.org/integration/gaia-2_1/rev/2c0420601deb
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #26880 from luke-chang/1102789_v2.1_import_vcard_freeze

Bug 1102789 - [Contacts] MS freeze when import contacts from memory card to phone

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https://hg.mozilla.org/integration/gaia-2_1/rev/c362de8d4b3c
Author: Luke Chang <lchang@mozilla.com>
Desc: Bug 1102789 - [Contacts] MS freeze when import contacts from memory card to phone

cherry-picked from 3deb9798ec02a20c64a45b9753c2a33ffcca045d
Bumping manifests a=b2g-bump