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

========

https://hg.mozilla.org/integration/gaia-central/rev/fdcc6447e5f9
Author: Ian Liu <iliu@mozilla.com>
Desc: Merge pull request #25396 from ian-liu/settings/bluetooth/bug1085201_Searchingdevice_not_hidden_as_BTHS_paired_via_NFC

Bug 1085201 - [Flame][Tako][v2.1][Settings] "Searching device" not hidden as Sony SBH50 BTHS paired via NFC, r=arthur

========

https://hg.mozilla.org/integration/gaia-central/rev/8f6c6cd69d2a
Author: ian-liu <iliu@mozilla.com>
Desc: Bug 1085201 - [Flame][Tako][v2.1][Settings] "Searching device" not hidden as Sony SBH50 BTHS paired via NFC
Bumping manifests a=b2g-bump