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

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https://hg.mozilla.org/integration/gaia-central/rev/5ed37bef1db4
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Merge pull request #14085 from pivanov/bug-943321

Bug 943321 - [Shared] Followup: remove drop shadows from action icons

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https://hg.mozilla.org/integration/gaia-central/rev/607d6cadff06
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 943321 - [Shared] Followup: remove drop shadows from action icons

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "5a7d8dc62349f97c48a937e47dfafe5692c0ef85", 
+    "revision": "5ed37bef1db42722ba88118b70c32286d7c71262", 
     "repo_path": "/integration/gaia-central"
 }