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

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https://hg.mozilla.org/integration/gaia-central/rev/e58141d529a7
Author: EragonJ <eragonj@eragonj.me>
Desc: Merge pull request #16243 from EragonJ/bug-972150

Bug 972150 -[DSDS][Gaia][Sim Manager] support always ask feature

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https://hg.mozilla.org/integration/gaia-central/rev/f49bd907037a
Author: EragonJ <eragonj@eragonj.me>
Desc: [DSDS][Gaia][Sim Manager] support always ask feature

- add 'always ask' option
- add related unit test
Bumping manifests a=b2g-bump