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

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https://hg.mozilla.org/integration/gaia-central/rev/665042c75b7d
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #24660 from tauzen/Bug1074800_listen_on_nfc_enabled

Bug 1074800 - NfcHandler starts to listen for peerready only when NFC is enabled, r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/821c736b7cac
Author: Krzysztof Mioduszewski <kmioduszewski@gmail.com>
Desc: Bug 1074800 - NfcHandler starts to listen for peerready only when NFC is enabled, r=alive
Bumping manifests a=b2g-bump