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

========

https://hg.mozilla.org/integration/gaia-central/rev/979c376ea015
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #17289 from crdlc/bug-984892

Bug 984892 - Lazy load library does not cache fragments

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https://hg.mozilla.org/integration/gaia-central/rev/f039d3cf3b9b
Author: crdlc <crdlc@tid.es>
Desc: Bug 984892 - Lazy load library does not cache fragments

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "branch": "", 
         "revision": ""
     }, 
-    "revision": "9da7326cc3786522708a2949b93b370b40f864e9", 
+    "revision": "979c376ea015dae232158c6ab0b58dfcc9e52649", 
     "repo_path": "/integration/gaia-central"
 }