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

========

https://hg.mozilla.org/integration/gaia-central/rev/278c062e8d0e
Author: Fischer-L <Fischer-L@users.noreply.github.com>
Desc: Merge pull request #33068 from Fischer-L/bug_1222364-ft-presentation-cast-video

Bug 1222364 - [Stingray][fling-player][TV][2.5] UI polish, behaviour updates and skip error message, r=rexboy

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https://hg.mozilla.org/integration/gaia-central/rev/cb15a0892aca
Author: Fischer.json <foxbrush@Fischerjsons-MacBook-Pro.local>
Desc: Bug 1222364 - [Stingray][fling-player][TV][2.5] UI polish, behaviour updates and skip error message

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "a0d541d8c5ab93fe655201820ad5fad7558a9cdd", 
+        "git_revision": "4b768fbab05eb46b7bf8cb39bd5217fdd2c193c3", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "ab5868dc9e59f95a686ad4c7e63bf2dffe985501", 
+    "revision": "278c062e8d0e69cc1967cc65b12220d46dd02a2b", 
     "repo_path": "integration/gaia-central"
 }