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

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https://hg.mozilla.org/integration/gaia-central/rev/9da7326cc378
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #16350 from RudyLu/keyboard/Bug958035

Bug 958035 - [Keyboard][V1.4] The previous keyboard shows briefly if you
r=timdream, alive.

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https://hg.mozilla.org/integration/gaia-central/rev/9af26328719e
Author: Rudy Lu <me@rudy.lu>
Desc: Bug 958035 - [Keyboard][V1.4] The previous keyboard shows briefly if you
switch keyboard between number field and text field.
  - Not to invoke keyboardFrame.setVisible(false) when we reuse the
    frame.
  - Invoke homescreen.fadeOut() to solve the homescreen leak issue when
    showing/switching/hiding keyboard.
Bumping manifests a=b2g-bump