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

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https://hg.mozilla.org/integration/gaia-central/rev/06a3ab07817c
Author: Zac <zcampbell@mozilla.com>
Desc: Merge pull request #13142 from AndreiH/bug931770

Bug 931770 - Change xfail for test_gallery_edit_photo.py

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https://hg.mozilla.org/integration/gaia-central/rev/fbec65d0a081
Author: Andrei Hutusoru <andreihutusoru@P5069.(none)>
Desc: Bug 931770 - Change xfail for test_gallery_edit_photo.py

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "b75625390b4d657346ea3599a341e1252bf6344c", 
+    "revision": "06a3ab07817cbee4766cd502f2427fa2368965b3", 
     "repo_path": "/integration/gaia-central"
 }