kconfig: fix qconf segfault by deleting heap objects

On Debian stable (qt-4.8.6) 'make xconfig' intermittently fails due to qconf segfaulting at exit time in QXcbEventReader. The cause of this is destructors on the heap objects never being called, so fix this by properly deleting the heap objects before exit.

---
Trivial error, as described at https://forum.qt.io/topic/26658/solved-segfault-on-qapplication-exit

---
 scripts/kconfig/qconf.cc | 2 ++
 1 file changed, 2 insertions(+)

index 91b7e6fbc364..fc5555992220 100644
@@ -1863,6 +1863,8 @@ int main(int ac, char** av)
 
 	configSettings->endGroup();
 	delete configSettings;
+	delete v;
+	delete configApp;
 
 	return 0;
 }

2.1.4

Applied to kbuild.git#kconfig, thanks.

Michal