Bumping gaia.json for 4 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/65525ba1e831
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #12023 from huchengtw-moz/shared/Bug_912842_photo_doesnt_return_original_size

Bug 912842 - [Buri][Camera][REG]Photo does not return to its original si..., r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/1bcf48d844df
Author: John Hu <johu@mozilla.com>
Desc: Bug 912842 - [Buri][Camera][REG]Photo does not return to its original size

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https://hg.mozilla.org/integration/gaia-central/rev/7a6fd2579998
Author: Sam Joch <samuel@guiora.com>
Desc: Merge pull request #12151 from samjoch/bug-816358-NotificationsScreenshotSavedToGalleryIcon

Bug 816358 - [Notification] "Screenshot saved to Gallery" notification does not have Gallery icon r=etienne

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https://hg.mozilla.org/integration/gaia-central/rev/30da7f157d70
Author: Sam Joch <samuel@guiora.com>
Desc: Bug 816358 - [Notification] "Screenshot saved to Gallery" notification does not have Gallery icon

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "39938f581efd6d7a4a6ccaf1cf8d77b8d93e1c2b", 
+    "revision": "65525ba1e83132531aea5bb7cea212a630fbadb7", 
     "repo_path": "/integration/gaia-central"
 }