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

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https://hg.mozilla.org/integration/gaia-central/rev/f2d066ec8312
Author: Greg Weng <snowmantw@gmail.com>
Desc: Merge pull request #31147 from snowmantw/bug1173284-rev4

Bug 1173284 - fix: sliding and unlocking wait for the mozSettings (rev2)

========

https://hg.mozilla.org/integration/gaia-central/rev/667a2716a881
Author: Greg Weng <snowmantw@gmail.com>
Desc: Bug 1173284 - fix: sliding and unlocking wait for the mozSettings (rev2)

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "4e1638e910f1657a9e940c99cb3421dbb71411e6", 
+        "git_revision": "b066d68030dac08cb545b37195bcab67593f365b", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "9d7731c8760ae9bd35da1f26238450cc87b98ac8", 
+    "revision": "f2d066ec8312ce019cf956136f8e0ac0382a619f", 
     "repo_path": "integration/gaia-central"
 }