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

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https://hg.mozilla.org/integration/gaia-central/rev/38b4f6e058e9
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #22046 from KevinGrandon/bug_1011274_sms_test_timeout

Bug 1011274 - Intermittent utils_test.js | Utils Utils.getResizedImgBlob "before all" hook | timeout of 5000ms exceeded r=julien

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https://hg.mozilla.org/integration/gaia-central/rev/38ca5e65d161
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1011274 - Intermittent utils_test.js | Utils Utils.getResizedImgBlob "before all" hook | timeout of 5000ms exceeded

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "097d333ddd568576aa933f9259b7f6ee1f62d41f", 
+    "revision": "38b4f6e058e94c0c6cc31a43d8cf224fc1056a7b", 
     "repo_path": "/integration/gaia-central"
 }