Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-1_3/rev/fc8f7272a0e7
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Merge pull request #15668 from mukeshk1990/Bug_947086_Dialer_may_call_CDMA-specific_bluetooth_functions_on_non-CDMA_phone

Bug 947086 - [Dialer] Dialer may call CDMA-specific bluetooth functions r=etienne
(cherry picked from commit b58937b36da25e627d65a6aad38ecabaca6f3ffe)
Bumping manifests a=b2g-bump