Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/8e9909797fbf
Author: Rudy Lu <left.lu@gmail.com>
Desc: Merge pull request #10977 from RudyLu/keyboard/Bug891798-delay_keyboard_showup

Bug 891798 - Always delay the display of the keyboard w/o suggestion bar. r=janjongboom

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https://hg.mozilla.org/integration/gaia-central/rev/b31cc5822b82
Author: Rudy Lu <left.lu@gmail.com>
Desc: Bug 891798 - Always delay the display of the keyboard w/o suggestion bar
during input focus switching.
 - clear the redraw keyboard timeout after entering renderKeyboard()