Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/25cbd117f50b
Author: gitmai <mri@tid.es>
Desc: Merge pull request #17704 from gitmai/bug-988268-CC-limit-non-zero-add-invalid-css

Bug 988268 - [Cost Control] 'When use is above' parameter is set to '0' ...
r=jmcf

========

https://hg.mozilla.org/integration/gaia-central/rev/08dfbb203ee4
Author: mai <mri@tid.es>
Desc: Bug 988268 - [Cost Control] 'When use is above' parameter is set to '0' the red line appearing at the top of the graphic

========

https://hg.mozilla.org/integration/gaia-central/rev/98daef163467
Author: Bob Silverberg <bob.silverberg@gmail.com>
Desc: Merge pull request #19031 from bebef1987/sms_dial

Bug 1006995 - Fix the failure of test_sms_to_dialer.py

========

https://hg.mozilla.org/integration/gaia-central/rev/4482f02fc168
Author: Bebe <bebe@mozilla.ro>
Desc: Bug 1006995 - Fix the failure of test_sms_to_dialer.py

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "acd16d8eeb4d46cfe071310fdbeba0ab75b8de27", 
+    "revision": "25cbd117f50b7d8c9154b192e8f1b274adbcf833", 
     "repo_path": "/integration/gaia-central"
 }