Bumping gaia.json for 5 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/ab6402324569
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Merge pull request #32194 from Cwiiis/bug1205197-new-homescreen-intermittent-hashchange-test

Bug 1205197 - Fix intermittent hashchange unit test failures. r=gmarty

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https://hg.mozilla.org/integration/gaia-central/rev/e509f65855a5
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 1205197 - Fix intermittent hashchange unit test failures. r=gmarty

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https://hg.mozilla.org/integration/gaia-central/rev/f7029526ee00
Author: Francisco Jordano <fjordano@mozilla.com>
Desc: Revert "Bug 1202359 - [Contacts]Tap the check box(small rectangular box) in "Duplicates Found" view for once, actually it performed double taps. r=ferjm"

This reverts commit 40ff7521bdfc6919ffca4be4db3dc8f0629f8644.

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https://hg.mozilla.org/integration/gaia-central/rev/4a00911f4fde
Author: Sean Lee <weilonge@gmail.com>
Desc: Merge pull request #32131 from weilonge/seanlee/DataSync/master/Bug1202382

 Bug 1202382 - Implement read-only Bookmarks Adapter for FxSync feature. r=ferjm

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https://hg.mozilla.org/integration/gaia-central/rev/f488c58ab57f
Author: Sean Lee <selee@mozilla.com>
Desc:  Bug 1202382 - Implement read-only Bookmarks Adapter for FxSync feature. r=ferjm

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "8849ff938af351550a1015756839cae38046ee00", 
+        "git_revision": "22b991afdb1e748bb8b6a1c5b0af5352c8c910f8", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "1e73fc5cd9515429b8269d638f8bf43705be6376", 
+    "revision": "ab6402324569aab84771e3e67cb284098cd874ab", 
     "repo_path": "integration/gaia-central"
 }