Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/ef2f6f522a8b
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #25803 from davehunt/bug1074117-camera

Bug 1074117 - Use expected conditions and optimise element lookups in camera app object

========

https://hg.mozilla.org/integration/gaia-central/rev/65ca415fbe0f
Author: Dave Hunt <dave.hunt@gmail.com>
Desc: Bug 1074117 - Use expected conditions where appropriate and optimise element lookups in camera app object. r=bebe

========

https://hg.mozilla.org/integration/gaia-central/rev/4cc7dd30845a
Author: Gabriele Svelto <gsvelto@mozilla.com>
Desc: Bug 1093029 - Do not treat two-digit phone numbers starting with 1 as MMI codes when outside of a call r=drs
Bumping manifests a=b2g-bump