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

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https://hg.mozilla.org/integration/gaia-central/rev/56de2efb3faa
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Merge pull request #27616 from eeejay/bug-1069013

Bug 1069013 - Make crop and effect buttons aria radio buttons and label ... r=pdahiya

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https://hg.mozilla.org/integration/gaia-central/rev/fb1d3e8fe6ff
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Bug 1069013 - Make crop and effect buttons aria radio buttons and label them.

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "09f243bbc3e5d7bf85b072e82861b5f8700f1521", 
+        "git_revision": "e90469b38d08cd8060c17f4cbaec29ede9e539c7", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "d334f4a705a9a0b1934602974f32b0804c8c7aa8", 
+    "revision": "56de2efb3faa3cada4c207c7606ee1cd3dba4cbf", 
     "repo_path": "integration/gaia-central"
 }