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

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https://hg.mozilla.org/integration/gaia-central/rev/ffef5fa40484
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Merge pull request #32331 from albertopq/1211887-homescreen-pages

Bug 1211887 - Fixing style in gaia pin cards r=mhenretty

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https://hg.mozilla.org/integration/gaia-central/rev/012e2ae7c067
Author: albertopq <albert.pastor@gmail.com>
Desc: Bug 1211887 - Fixing style in gaia pin cards

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "26f3d0e450c19611be8a026d5b896691bacd3a1e", 
+        "git_revision": "a9399f148859dc9dce73c4f2a2fd7653388aa9bc", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "149cec9350ccd136deb2a4d3f820e59270c68ce1", 
+    "revision": "ffef5fa40484c3d05b3a6eb3d1090aa2c9f6a7f6", 
     "repo_path": "integration/gaia-central"
 }