Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/d490c9fb492f
Author: Luke Chang <lchang@mozilla.com>
Desc: Merge pull request #23023 from luke-chang/1052424_sms_forward_cursor_position

Bug 1052424 - [Messages] Cursor should be in the "to" field by default while forwarding messages

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https://hg.mozilla.org/integration/gaia-central/rev/954da0ab53b2
Author: Luke Chang <lchang@mozilla.com>
Desc: Bug 1052424 - [Messages] Cursor should be in the "to" field by default while forwarding messages

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https://hg.mozilla.org/integration/gaia-central/rev/787f9b7700ec
Author: albertopq <albert.pastor@gmail.com>
Desc: Merge pull request #24574 from albertopq/1074352-ftu-icons-white

Bug 1074352 - Listen to titlestatechanged on ftu r=mhenretty

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https://hg.mozilla.org/integration/gaia-central/rev/ad817045a008
Author: albertopq <apastor@mozilla.com>
Desc: Bug 1074352 - Listen to titlestatechanged on ftu
Bumping manifests a=b2g-bump