IDevice: Replace QSharedPointer with std::shared_ptr

According to https://wiki.qt.io/Things_To_Look_Out_For_In_Reviews
QSharedPointer impl is poor and it's going to be removed from Qt 7.

Replace QWeakPointer with std::weak_ptr.
Replace QEnableSharedFromThis with std::enable_shared_from_this.
Use std::static_pointer_cast and std::dynamic_pointer_cast
for casts used with QSharedPointer before.

Change-Id: If255a100c790860934f36d52906b93f33c31cfe8
Reviewed-by: hjk <hjk@qt.io>

src/plugins/android/androiddeployqtstep.cpp

@@ -218,7 +218,7 @@ bool AndroidDeployQtStep::init()
 
     if (!info.isValid()) {
         const auto dev =
-                static_cast<const AndroidDevice *>(DeviceKitAspect::device(kit()).data());
+                static_cast<const AndroidDevice *>(DeviceKitAspect::device(kit()).get());
         if (!dev) {
             reportWarningOrError(Tr::tr("No valid deployment device is set."), Task::Error);
             return false;