Update Overlay icon in MiniTargetSelector on Kit changes

This makes sure the icon is updated when changing devices in
the kit.

Task-number: QTCREATORBUG-7938
Change-Id: I6d5a07993593084a6226cfa044bb899d74cb5e15
Reviewed-by: Daniel Teske <daniel.teske@digia.com>

src/plugins/projectexplorer/target.cpp

@@ -188,6 +188,7 @@ void Target::handleKitUpdates(Kit *k)
     setDisplayName(k->displayName());
     setIcon(k->icon());
     updateDefaultDeployConfigurations();
+    updateDeviceState(); // in case the device changed...
     emit kitChanged();
 }