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

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https://hg.mozilla.org/integration/gaia-1_4/rev/6211055b6baf
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #21611 from julienw/1036532-fix-images-hd

Bug 1036532 - [Flame][v1.4][Gaia::SMS] There is a horizontal line on “SI...

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https://hg.mozilla.org/integration/gaia-1_4/rev/098acf5c7fdf
Author: Julien Wajsberg <felash@gmail.com>
Desc: Bug 1036532 - [Flame][v1.4][Gaia::SMS] There is a horizontal line on “SIM1/2” word and "..." under “Send” word in the message send button when set a SIM card as default outgoing message. r=arnau
Bumping manifests a=b2g-bump