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

========

https://hg.mozilla.org/integration/gaia-central/rev/b6ce93c01bda
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #22835 from sudheesh001/Patch_1032033

Fixes Bug 1032033, build/test/integration/helper.js r=yurenju

========

https://hg.mozilla.org/integration/gaia-central/rev/6013ce199eeb
Author: sudheesh001 <sudheesh1995@outlook.com>
Desc: Fixes Bug 1032033, build/test/integration/helper.js r=yurenju

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "e4a068c1ec044595738a3698fa32840764dd7ca0", 
+    "revision": "b6ce93c01bda41c1536d905d2b358e0227b962d2", 
     "repo_path": "/integration/gaia-central"
 }