Sort keyboard layouts

At the moment it's not easy to find a layout in the physical
keyboard layout list as they are not sorted; this CL will sort the
keyboard layout list before it is  presented to the user.

Bug: 279281653
Test: Flashed on device, confirmed the layout list is sorted
Change-Id: Ibc7e329190785cce9a8d9c33bc2fcaca6b8c169a

src/com/android/settings/inputmethod/NewKeyboardLayoutPickerController.java

@@ -83,6 +83,7 @@ public class NewKeyboardLayoutPickerController extends BasePreferenceController
         mFinalSelectedLayout = mLayout;
         mKeyboardLayouts = mIm.getKeyboardLayoutListForInputDevice(
                 mInputDeviceIdentifier, mUserId, mInputMethodInfo, mInputMethodSubtype);
+        NewKeyboardSettingsUtils.sortKeyboardLayoutsByLabel(mKeyboardLayouts);
         parent.getActivity().setTitle(mTitle);
     }