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

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https://hg.mozilla.org/integration/gaia-central/rev/2f06ecfcb4b5
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Merge pull request #32991 from Cwiiis/bug1221349-homescreen-exit-editmode-on-visibilitychange

Bug 1221349 - Exit edit mode when phone is locked. r=gmarty

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https://hg.mozilla.org/integration/gaia-central/rev/fc17352e96c3
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 1221349 - Exit edit mode when phone is locked. r=gmarty

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https://hg.mozilla.org/integration/gaia-central/rev/b2ff68fe1b07
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Merge pull request #32978 from Cwiiis/bug1221195-homescreen-remove-system-xhr

Bug 1221195 - Remove unused systemXHR permission. r=gmarty

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https://hg.mozilla.org/integration/gaia-central/rev/c0a37151f9a6
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 1221195 - Remove unused systemXHR permission. r=gmarty

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https://hg.mozilla.org/integration/gaia-central/rev/9cc40db3820e
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #32993 from mikehenrty/bug-1179587-option-menu-test-fix

Bug 1179587 - Fix option menu test to be less racy

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https://hg.mozilla.org/integration/gaia-central/rev/04095eeb6b10
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1179587 - Fix option menu test to be less racy

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "78f0df71c005fc2450c1b00ff411359c5fad026b", 
+        "git_revision": "70f54574900565d23ee61f5e00ba23d33d62acf9", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "0c8fb462b0e3c95c7ff73900939746b77ff543fa", 
+    "revision": "2f06ecfcb4b52fe626486842d81c9bbc56bc716f", 
     "repo_path": "integration/gaia-central"
 }