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

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https://hg.mozilla.org/integration/gaia-1_4/rev/fdd37df58029
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Merge pull request #17897 from arcturus/bug-990496

Bug 990496 - [Contacts] Error when user tries to cancel importing contacts

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https://hg.mozilla.org/integration/gaia-1_4/rev/ee2bab5254d4
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #17958 from gitmai/bug-986358-rebase-1.3

Bug 986358 -[Sora][IOT] Not SIM inserted message appears when SIM is alr...
Bumping manifests a=b2g-bump