Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/b7c7b381f0d2
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #29046 from lightsofapollo/fully-enable-taskcluster

Fully enable taskcluster

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https://hg.mozilla.org/integration/gaia-central/rev/9b785d3d7352
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 1146302 - Turn off ice contacts test

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https://hg.mozilla.org/integration/gaia-central/rev/8cfc3b324999
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 1146263 - Disable intermittent clock tests

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https://hg.mozilla.org/integration/gaia-central/rev/5cb347ba6770
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 1146260 - Disable  jspinyin deactivate due to intermittents

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https://hg.mozilla.org/integration/gaia-central/rev/f30b932ce28a
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 1146279 - try disabling share ringtone failing tests

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https://hg.mozilla.org/integration/gaia-central/rev/7215ece46444
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 1146277 - Use tc-vcs to clone gaia r=me a=bustage

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "84e6931b468f58e8df6436a18f409d082a7f58c4", 
+        "git_revision": "a2ecc688eadaf6d08a79be33efdd3be5a71ff120", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "c0851973e42d23cb8e29743ffa1d3311be5d5ba7", 
+    "revision": "b7c7b381f0d2cd22718cbde4c063e9b83733ee1d", 
     "repo_path": "integration/gaia-central"
 }