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

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https://hg.mozilla.org/integration/gaia-central/rev/0e78f442feb2
Author: Aleh Zasypkin <aleh.zasypkin@gmail.com>
Desc: Merge pull request #21417 from azasypkin/bug-990020-sim-mismatch

Bug 990020 - [B2G][SMS] A MMS that has not been downloaded yet will display a "Missing SIM card" message after changing the SIM to a different valid one. r=julien

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https://hg.mozilla.org/integration/gaia-central/rev/235cefc3cf30
Author: Aleh Zasypkin <azasypkin@mozilla.com>
Desc: Bug 990020 - [B2G][SMS] A MMS that has not been downloaded yet will display a "Missing SIM card" message after changing the SIM to a different valid one. r=julien
Bumping manifests a=b2g-bump