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

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https://hg.mozilla.org/integration/gaia-central/rev/b16291874ccd
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Merge pull request #24812 from etiennesegonzac/bug-1075290

Bug 1075290 - Prevent a race condition between turnScreenOff and turnScreenOn r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/382d4def9bef
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Bug 1075290 - Prevent a race condition between turnScreenOff and turnScreenOn

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "e9d93e2a0db103e4b3ae7e23016b89a205dbfdc4", 
+    "revision": "b16291874ccd351a0da9908b6865be9c21ea6ebc", 
     "repo_path": "/integration/gaia-central"
 }