Update residfp to newer build

Co-Authored-By: Alexander Babikov <2708460+lemondrops@users.noreply.github.com>

src/sound/resid-fp/Integrator8580.cpp

@@ -0,0 +1,25 @@
+/*
+ * This file is part of libsidplayfp, a SID player engine.
+ *
+ * Copyright 2014-2016 Leandro Nini <drfiemost@users.sourceforge.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#define INTEGRATOR8580_CPP
+
+#include "Integrator8580.h"
+
+// This is needed when compiling with --disable-inline