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

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https://hg.mozilla.org/integration/gaia-central/rev/4dd95504cb09
Author: Ricky Chien <rickychien@users.noreply.github.com>
Desc: Merge pull request #33794 from rickychien/fix-back-focus

Bug 1237541 - [TV] Preview window back key also trigger on parent app window r=@luke-chang

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https://hg.mozilla.org/integration/gaia-central/rev/11ccfde28146
Author: Ricky Chien <ricky060709@gmail.com>
Desc: Bug 1237541 - [TV] Preview window back key also trigger on parent app window

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "605edea466140090c701ce39d841279123186553", 
+        "git_revision": "514132d2e74218d607963ae1fe4a4e0ded392f22", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "57e846f9fb11e4e692f3ccaab2331d5d0d2aacea", 
+    "revision": "4dd95504cb09e15d82f4652a2272c2f3a513827c", 
     "repo_path": "integration/gaia-central"
 }