Utils::DetailsWidget Fix setUseCheckBox

The logic was reversed, fix it by calling updateControls() instead

Change-Id: I5433669c8fc5821b73aae0ab4b8e569571bc9b18
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Utils::DetailsWidget: Implement icon functionality for non checkbox case

While Qt Checkbox has a convenient api for setting a icon and a text, for
labels we need to do it the hard way.

Change-Id: I9e653b76b08357083a58b558afee5a2c74f1625b
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Android Potential Kit: set a icon

Change-Id: Iabe9a7821b1ac831c62bf52d393a5190dbb2d58a
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>