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

========

https://hg.mozilla.org/integration/gaia-central/rev/8d2554880efe
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Merge pull request #22516 from stasm/1048851-ftu-qps

Bug 1048851 - Read devtools.qps.enabled setting in FTU. r=fcampo

========

https://hg.mozilla.org/integration/gaia-central/rev/c194c2995213
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Bug 1048851 - Read devtools.qps.enabled in FTU. r=fcampo
Bumping manifests a=b2g-bump