Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/a58a1579a5fd
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Merge pull request #21138 from pivanov/bug-1030655

Bug 1030655 - [Flame][Email] - fuzzy clear icon

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https://hg.mozilla.org/integration/gaia-central/rev/196ebd9da323
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 1030655 - [Flame][Email] - fuzzy clear icon

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https://hg.mozilla.org/integration/gaia-central/rev/8ef1eb02fa74
Author: Douglas Sherk <github@sherk.me>
Desc: Merge pull request #21241 from DouglasSherk/1030546-dialer-share-localization

Bug 1030546 - [Dialer] Share keypad localization data across the dialer and emergency-call apps. r=etienne

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https://hg.mozilla.org/integration/gaia-central/rev/e4dc541908ff
Author: DouglasSherk <github@sherk.me>
Desc: Bug 1030546 - [Dialer] Share keypad localization data across the dialer and emergency-call apps. r=etienne

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "7af0e127fdda4483153d952fae0196a7f13a02f7", 
+    "revision": "a58a1579a5fd8c3927e5eeafff6ea6f727337571", 
     "repo_path": "/integration/gaia-central"
 }