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

========

https://hg.mozilla.org/integration/gaia-central/rev/0a42b0117c01
Author: gitmai <mri@tid.es>
Desc: Merge pull request #16935 from gitmai/bug-979341-CC-FTE-error-datausage-alarm

Bug 979341 - Error page displayed in Cost Control FTU, after setting Dat...
r=salva

========

https://hg.mozilla.org/integration/gaia-central/rev/b32a6ac27d18
Author: mai <mri@tid.es>
Desc: Bug 979341 - Error page displayed in Cost Control FTU, after setting Data usage limit
Bumping manifests a=b2g-bump