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

========

https://hg.mozilla.org/integration/gaia-2_1/rev/e812d43f14bd
Author: KWierso <kwierso@gmail.com>
Desc: Merge pull request #26126 from sfoster/unlock-in-ftu-2_1-bug-1088157

Bug 1088157 - Unlock lockScreen when FTU starts. r=timdream a=bajaj

========

https://hg.mozilla.org/integration/gaia-2_1/rev/6efa4cde3f21
Author: Sam Foster <sfoster@mozilla.com>
Desc: Bug 1088157 - Unlock lockScreen when FTU starts. r=timdream
Bumping manifests a=b2g-bump