Bumping gaia.json for 5 gaia revision(s) a=gaia-bump

Bumping gaia.json for 5 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_2r/rev/6c893767d7e9
Author: BavarianTomcat <tomcat@mozilla.com>
Desc: Merge remote-tracking branch 'origin/v2.2' into v2.2r, a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_2r/rev/e3d7b3dbd3b6
Author: Carsten Book <tomcat@mozilla.com>
Desc: Merge pull request #31731 from cr/fmdpasscodefix-v2.2

Bug 1201530 - Fix passcode override bug in FMD (v2.2 backport). r=gerald_max, a=mpotharaju

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https://hg.mozilla.org/integration/gaia-2_2r/rev/a149846c935f
Author: Christiane Ruetten <cr@mozilla.com>
Desc: Fix passcode override bug 1201530

This is a trivial hotfix, removing the check for an existing pass code,
allowing FMD to override. Also adds the required test.

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https://hg.mozilla.org/integration/gaia-2_2r/rev/ee526d901527
Author: Carsten Book <tomcat@mozilla.com>
Desc: Merge pull request #31889 from TheoChevalier/add-mg-bm

Bug 1189532 - Add Bambara (bm) and Malagasy (mg) locales to master an…. r=jocheng

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https://hg.mozilla.org/integration/gaia-2_2r/rev/626f28e955b5
Author: TheoChevalier <theo.chevalier11@gmail.com>
Desc: Bug 1189532 - Add Bambara (bm) and Malagasy (mg) locales to master and 2.2 builds, r=stas a=josh