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

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https://hg.mozilla.org/integration/gaia-central/rev/a2fd2ba30041
Author: Fernando Rodríguez Sela <frsela@tid.es>
Desc: Merge pull request #19762 from frsela/STK/Bug1015833

Bug 1015833 - [PTCRB][STK]27.22.4.1.1/2 DISPLAY TEXT, normal priority, Unpacked 8 bit data for Text String, screen busy case failed, r=vingtetun

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https://hg.mozilla.org/integration/gaia-central/rev/ee255dd3910f
Author: Fernando Rodriguez Sela <frsela@tid.es>
Desc: Bug 1015833 - [PTCRB][STK]27.22.4.1.1/2 DISPLAY TEXT, normal priority, Unpacked 8 bit data for Text String, screen busy case failed, r=vingtetun
Bumping manifests a=b2g-bump