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

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https://hg.mozilla.org/integration/gaia-central/rev/70f5447f7fbb
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #30767 from RomainLoisel/bug-1170458

Bug 1170458 - [Camera] fix remain jsdoc error, r=gasolin

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https://hg.mozilla.org/integration/gaia-central/rev/d1e3912693ac
Author: Romain <me@romain-loisel.fr>
Desc: Bug 1170458 - [Camera] fix remain jsdoc error R=gasolin

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "d7553bb9da5c4b010fca8bd0fe0fdf8b0d459b88", 
+        "git_revision": "aca4b2a98d5f4dc1f91b244633ef500f0f98dac6", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "984cb7c3a62b4ae96103ce1106d5381e8f2eee3a", 
+    "revision": "70f5447f7fbb645c74eb825cda131bf0a01abdba", 
     "repo_path": "integration/gaia-central"
 }