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

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https://hg.mozilla.org/integration/gaia-central/rev/541a1632ce50
Author: Wilson Page <wilsonpage@me.com>
Desc: Merge pull request #23817 from wilsonpage/1061996

Bug 1061996 - [Camera] Switching between the Camera and Video buttons rapidly

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https://hg.mozilla.org/integration/gaia-central/rev/8df3d4b7cf77
Author: Wilson Page <wilsonpage@me.com>
Desc: Bug 1061996 - [Camera] Switching between the Camera and Video buttons rapidly can disable them
Bumping manifests a=b2g-bump