wallet: Fix coinselection include

coinselection.h is not used by wallet.h but by qt/coincontroldialog.cpp

src/qt/coincontroldialog.cpp

@@ -16,10 +16,11 @@
 #include <qt/platformstyle.h>
 #include <qt/walletmodel.h>
 
-#include <wallet/coincontrol.h>
 #include <interfaces/node.h>
 #include <key_io.h>
 #include <policy/policy.h>
+#include <wallet/coincontrol.h>
+#include <wallet/coinselection.h>
 #include <wallet/wallet.h>
 
 #include <QApplication>