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

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https://hg.mozilla.org/integration/gaia-central/rev/0403a0cd4073
Author: Rex KM Lee <rexboy@mozilla.com>
Desc: Merge pull request #27592 from rexboy7/1122399-svg-filter-for-arrange-mode

Bug 1122399 - [Stingray][Home] Use svg filter for darken in arrange mode. r=dwi2

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https://hg.mozilla.org/integration/gaia-central/rev/0e052e4b2749
Author: Rex Lee <rexboy@mozilla.com>
Desc: Bug 1122399 - [Stingray][Home] Use svg filter for darken in arrange mode for compability

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "fc43ecd47e1c66e52db6b4aeaf6a780bf610a0e2", 
+        "git_revision": "3a015d905fd45ddea735019865206a27844b3c0a", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "72385110046e17f2c2e2586dddf6a8c784224ea1", 
+    "revision": "0403a0cd407399a113555d404be5a802fcb9f5a9", 
     "repo_path": "integration/gaia-central"
 }