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

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https://hg.mozilla.org/integration/gaia-central/rev/f1383ee2f3e5
Author: Greg Weng <snowmantw@gmail.com>
Desc: Merge pull request #16313 from snowmantw/issue960901-instantiable-lockscreen

Bug 960901 - (lockscreen-instance) [LockScreen] Make LockScreen as an instantiable function

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https://hg.mozilla.org/integration/gaia-central/rev/f662e5c8186a
Author: Greg Weng <snowmantw@gmail.com>
Desc: Bug 960901 - (lockscreen-instance) [LockScreen] Make LockScreen as an instantiable function
Bumping manifests a=b2g-bump