Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/7b36cdcfb0ad
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #27777 from viorelaioia/bug_1127266

Bug 1127266 - Update test_rocketbar_search.py according to changes in Bu...

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https://hg.mozilla.org/integration/gaia-central/rev/c147322a1a5a
Author: viorelaioia <viorela.ioia@softvision.ro>
Desc: Bug 1127266 - Update test_rocketbar_search.py according to changes in Bug 1117770

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https://hg.mozilla.org/integration/gaia-central/rev/7b8a6efc0af3
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #27632 from chirarobert/bug_1111981

Bug 1111981 - [v2.2] Investigate intermittent failure in test_sms_with_p...

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https://hg.mozilla.org/integration/gaia-central/rev/669752e4ae28
Author: Robert Chira <robertchira@P5075.(none)>
Desc: Bug 1111981 - [v2.2] Investigate intermittent failure in test_sms_with_picture_attached.py and test_add_photo_to_contact.py

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "5479269eb26c006124437c9973e4916aec69d17a", 
+        "git_revision": "b8976b317f9461c59c90b96535c1a8a4b9712bed", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "e3bed7f953e9e044fddd59609fed4ae83c5be764", 
+    "revision": "7b36cdcfb0ada30dc99b93ffd9a193017ec3d05d", 
     "repo_path": "integration/gaia-central"
 }