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

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https://hg.mozilla.org/integration/gaia-central/rev/c24176cfc9d1
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #23696 from mikehenrty/bug-1061924-call-forwarding-flashing

Bug 1061924 - Hide callforwarding and signal icons by default

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https://hg.mozilla.org/integration/gaia-central/rev/a2629d53e82a
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1061924 - Hide callforwarding and signal icons by default

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "5e8003c86883237675c690edcc551e92fc4a2bec", 
+    "revision": "c24176cfc9d128e5673782e05532f09ff94d09c5", 
     "repo_path": "/integration/gaia-central"
 }