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

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https://hg.mozilla.org/integration/gaia-central/rev/0545d82cefea
Author: Rex KM Lee <rexboy@mozilla.com>
Desc: Merge pull request #27699 from rexboy7/1123596-notification-sender

Bug 1123608 - [Stingray][Notification] Sender App initial commit. r=dwi2

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https://hg.mozilla.org/integration/gaia-central/rev/7f166f3260a0
Author: Rex Lee <rexboy@mozilla.com>
Desc: Bug 1123608 - [Stingray][Notification] Sender App initial commit

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "d4b4bb70cef719b39fea8d9d618d2f9a8c11e647", 
+        "git_revision": "443b74aaf4bc071b8c778582d29f07b523b89b49", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "2b519359877624a748c0e29eb57f221298903394", 
+    "revision": "0545d82cefeaf8cc79e633a80e94b6fa58b0bfa9", 
     "repo_path": "integration/gaia-central"
 }