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

========

https://hg.mozilla.org/integration/gaia-central/rev/d3dfc2545449
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1134306 - merge pull request #28313 from autra:bug-1134306 to mozilla-b2g:master

========

https://hg.mozilla.org/integration/gaia-central/rev/9903fa1685bf
Author: Augustin Trancart <augustin.trancart@phoxygen.com>
Desc: Bug 1134306 - put the scrollbar back to the right even in RTL language

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https://hg.mozilla.org/integration/gaia-central/rev/186967e52f37
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1129640 - merge pull request #28311 from ADLR-es:rtl-css-fix to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/a917b40fc45b
Author: Adrián de la Rosa <adriantovick@gmail.com>
Desc: Bug 1129640 - [Contacts] - The font on the contact information page listing the Birthday and Anniversary is way too small.

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "8933df916a1503847b97f8245e4f359ef1b5f2f0", 
+        "git_revision": "debb64a2cad43e20a22153b2345a3f434cc61ff7", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "52e23dd10ab727d259e9bad62aaf8510903bacd3", 
+    "revision": "d3dfc25454491f81eaaaf2177e7118fb32005995", 
     "repo_path": "integration/gaia-central"
 }