Fix swapped alphabet and symbols keyboards

Change-Id: I956684332d607cb9ab01d12af7a924c15def7fce

java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java

@@ -303,13 +303,13 @@ public class KeyboardSwitcher implements KeyboardState.SwitchActions,
     // Implements {@link KeyboardState.SwitchActions}.
     @Override
     public void setSymbolsKeyboard() {
-        setKeyboard(mKeyboardSet.getMainKeyboard());
+        setKeyboard(mKeyboardSet.getSymbolsKeyboard());
     }
 
     // Implements {@link KeyboardState.SwitchActions}.
     @Override
     public void setAlphabetKeyboard() {
-        setKeyboard(mKeyboardSet.getSymbolsKeyboard());
+        setKeyboard(mKeyboardSet.getMainKeyboard());
     }
 
     // Implements {@link KeyboardState.SwitchActions}.