Bumping gaia.json for 4 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/435afed44147
Author: Francisco Borja Salguero Castellano <borjasalguero@users.noreply.github.com>
Desc: Merge pull request #12094 from borjasalguero/oslo_bb_fix_actionmenu

Bug 912904 - [System][Dialogs][ActionMenu] Dialogs & Action menus (BB) a...

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https://hg.mozilla.org/integration/gaia-central/rev/88022d345b4a
Author: borjasalguero <fbsc@tid.es>
Desc: Bug 912904 - [System][Dialogs][ActionMenu] Dialogs & Action menus (BB) are not scrolling as expected when there is a large list of items. r=alive,kaze

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https://hg.mozilla.org/integration/gaia-central/rev/97688b49289c
Author: Jose Antonio Olivera Ortega <josea.olivera@gmail.com>
Desc: Merge pull request #12114 from jaoo/883298

Bug 883298 - [FTU] Check whether there is no need to retrieve the APN settings from the apn.json database. r=fcampo

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https://hg.mozilla.org/integration/gaia-central/rev/6cefde072606
Author: Jose Antonio Olivera Ortega <josea.olivera@gmail.com>
Desc: Bug 883298 - [FTU] Check whether there is no need to retrieve the APN settings from the apn.json database.