Add phone-pad keyboard

Summary:
With the numeric keyboard now being an actual numeric keyboard (before
it was actually phone-pad), we need a proper phone-pad keyboard as well.

public

Reviewed By: dmmiller

Differential Revision: D2830707

fb-gh-sync-id: 80a1d314eac730e691de73a31342c014a2fa5ba6

Libraries/Components/TextInput/TextInput.js

@@ -134,14 +134,14 @@ var TextInput = React.createClass({
     keyboardType: PropTypes.oneOf([
       // Cross-platform
       'default',
-      'numeric',
       'email-address',
+      'numeric',
+      'phone-pad',
       // iOS-only
       'ascii-capable',
       'numbers-and-punctuation',
       'url',
       'number-pad',
-      'phone-pad',
       'name-phone-pad',
       'decimal-pad',
       'twitter',