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

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https://hg.mozilla.org/integration/gaia-central/rev/2c66d42bf145
Author: Douglas Sherk <github@sherk.me>
Desc: Merge pull request #21248 from DouglasSherk/1032502-callscreen-phone-label

Bug 1032502 - [Dialer][Contacts][Callscreen] Fix phone type label not being localized on callscreen. r=francisco

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https://hg.mozilla.org/integration/gaia-central/rev/336e98ecf529
Author: DouglasSherk <github@sherk.me>
Desc: Bug 1032502 - [Dialer][Contacts][Callscreen] Fix phone type label not being localized on callscreen. r=francisco

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "a58a1579a5fd8c3927e5eeafff6ea6f727337571", 
+    "revision": "2c66d42bf145a0f0d209daba36e3ff058ebf4917", 
     "repo_path": "/integration/gaia-central"
 }