Don't leak PortListPrivate.

Change-Id: I8ad9a3a3224eb07ebc7d58aa92f1d0194eb57569
Reviewed-by: Christian Kandeler <christian.kandeler@nokia.com>

src/plugins/remotelinux/portlist.cpp

@@ -143,6 +143,11 @@ PortList::PortList(const PortList &other) : d(new Internal::PortListPrivate(*oth
 {
 }
 
+PortList::~PortList()
+{
+    delete d;
+}
+
 PortList &PortList::operator=(const PortList &other)
 {
     *d = *other.d;

src/plugins/remotelinux/portlist.h

@@ -47,6 +47,7 @@ public:
     PortList();
     PortList(const PortList &other);
     PortList &operator=(const PortList &other);
+    ~PortList();
 
     void addPort(int port);
     void addRange(int startPort, int endPort);