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

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https://hg.mozilla.org/integration/gaia-central/rev/299929cec781
Author: Douglas Sherk <github@sherk.me>
Desc: Merge pull request #17534 from DouglasSherk/987018-dsds-sms-focus

Bug 987018 - [DSDS] Fix focus() method calling on SIM picker to hide the keyboard. r=julienw

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https://hg.mozilla.org/integration/gaia-central/rev/25c4d82d1f6e
Author: DouglasSherk <github@sherk.me>
Desc: Bug 987018 - [DSDS] Fix focus() method calling on SIM picker to hide the keyboard. r=julienw
Bumping manifests a=b2g-bump