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

========

https://hg.mozilla.org/integration/gaia-1_4/rev/4a23eef315a2
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #21479 from weigao123/bug1034455-v1.4

Bug 1034455 - [v1.4] radio event will be dispatched untill radio is turned on or off thoroughly. r=EJ

========

https://hg.mozilla.org/integration/gaia-1_4/rev/008ebfcb435c
Author: wei.gao <wei.gao@spreadtrum.com>
Desc: Bug 1034455 - [v1.4] radio event will be dispatched untill radio is turned on or off thoroughly. r=EJ
Bumping manifests a=b2g-bump