Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/9efe10b9adbe
Author: autolander <bug.autolander@gmail.com>
Desc: Bug 1166863 - merge pull request #30160 from KevinGrandon:bug_1166863_messages_string_includes to mozilla-b2g:master

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https://hg.mozilla.org/integration/gaia-central/rev/f80a4ab447c8
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1166863 - [Messages] Convert string.contains to string.includes

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "f968fd179b51624c19021cb816b2e16d660abcdb", 
+        "git_revision": "6fa6da150c71a18a274da87a06b1c88e7b7db33f", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "071ea0cd996c9a310c5e7527d8cce06c185f547c", 
+    "revision": "9efe10b9adbef91949eb91f0386e4bc2a7923259", 
     "repo_path": "integration/gaia-central"
 }