Rename uz-cyrl.js to uz-Cy.js (#1786)

https://github.com/yiisoft/yii2/tree/master/framework/messages/uz-Cy

js/locales/uz-cyrl.js → js/locales/uz-Cy.js

@@ -120,4 +120,4 @@
             close: 'Батафсил кўришни ёпиш'
         }
     };
-}));
+}));