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

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https://hg.mozilla.org/integration/gaia-central/rev/4cd552e28e0a
Author: No-Jun Park <npark@mozilla.com>
Desc: Merge pull request #32785 from npark-mozilla/1218844

Bug 1218844 - Fix apps/system/regions/status_bar.py

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https://hg.mozilla.org/integration/gaia-central/rev/9b0ae0906cc7
Author: g5njpark <nojun.park@gmail.com>
Desc: Bug 1218844 - Fix apps/system/regions/status_bar.py

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "d31d9850b155bf9dbbde704745ff3d08898d3d23", 
+        "git_revision": "453948536f33d93a2119231368097dc998904f32", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "ee0b045ad77458291ce34199134c7ef4fd45cc4f", 
+    "revision": "4cd552e28e0aaa7fda3b28b017da14471dcaeb72", 
     "repo_path": "integration/gaia-central"
 }