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

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https://hg.mozilla.org/integration/gaia-central/rev/630d27e5cff7
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #15539 from yurenju/align

Bug 957497 - Enable alignStoredFiles() r=@timdream

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https://hg.mozilla.org/integration/gaia-central/rev/dbf49f1f14b9
Author: Yuren Ju <yurenju@gmail.com>
Desc: Bug 957497 - Enable alignStoredFiles()

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "4523a8f13fa60a0985bb0736fb77b6fb5f66387c", 
+    "revision": "630d27e5cff74e12e319572dff2b1acd632dc326", 
     "repo_path": "/integration/gaia-central"
 }