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

========

https://hg.mozilla.org/integration/gaia-central/rev/c2ba900e85fc
Author: Fernando Jiménez Moreno <ferjmoreno@gmail.com>
Desc: Merge pull request #33557 from ferjm/bug1229920.followup

Bug 1229920 - follow up. Sync app missing on Spark builds. r=fabrice

========

https://hg.mozilla.org/integration/gaia-central/rev/79ec3eaff284
Author: Fernando Jiménez Moreno <ferjmoreno@gmail.com>
Desc: Bug 1229920 - follow up. Sync app missing on Spark builds. r=fabrice

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "43339d3f90dcc532887ed75888c738d87db358e6", 
+        "git_revision": "321984cce83cb3ad46d7d7129d6e0e3d324eb3df", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "fdfdbc8c25b51a4a9579cc0942de3f633c3f7e37", 
+    "revision": "c2ba900e85fcff48dc2f60c8bebb0318c37decb5", 
     "repo_path": "integration/gaia-central"
 }