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

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https://hg.mozilla.org/integration/gaia-central/rev/f7f153f95231
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #22462 from marsf/keyboard/Bug1048087

Bug 1048087 - [Keyboard] Keyboard layout for ja locale is not defined in build config.
r=rudylu.

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https://hg.mozilla.org/integration/gaia-central/rev/9880bef34376
Author: Masahiko Imanaka <chimantaea_mirabilis@yahoo.co.jp>
Desc: Bug 1048087 - [Keyboard] Keyboard layout for ja locale is misconfigured in build config
Bumping manifests a=b2g-bump