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

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https://hg.mozilla.org/integration/gaia-central/rev/ee08bfc05125
Author: GaryChen,PYChen <mmm198219@gmail.com>
Desc: Merge pull request #19227 from mpizza/bug_1010014_homescreen_manifestURL_customizable

Bug 1010014 - [Build System] homescreen.manifestURL should be customizable. r=yuren.

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https://hg.mozilla.org/integration/gaia-central/rev/832275607b75
Author: mpizza <mmm198219@gmail.com>
Desc: Bug 1010014 - [Build System] homescreen.manifestURL should be customizable.

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https://hg.mozilla.org/integration/gaia-central/rev/fce59fb8dc0e
Author: GaryChen,PYChen <mmm198219@gmail.com>
Desc: Merge pull request #19356 from mpizza/bug_1012497_androidMK

Bug 1012497 - [Build System] Add GAIA_DEVICE_TYPE flag in Android.mk. r=mwu.

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https://hg.mozilla.org/integration/gaia-central/rev/716aec16e4b5
Author: mpizza <mmm198219@gmail.com>
Desc: Bug 1012497 - [Build System] Add GAIA_DEVICE_TYPE flag in Android.mk.
Bumping manifests a=b2g-bump