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

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https://hg.mozilla.org/integration/gaia-central/rev/f741dca42f03
Author: Sam Foster <sam@sam-i-am.com>
Desc: Merge pull request #26630 from sfoster/ftu-rtl-nav-bug-1037755

Bug 1037755 dont flip FTU nav buttons in RTL. r=fcampo

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https://hg.mozilla.org/integration/gaia-central/rev/80f980cfb0b8
Author: Sam Foster <sfoster@mozilla.com>
Desc: Bug 1037755 dont flip nav buttons in RTL. r=fcampo
Bumping manifests a=b2g-bump