Update patch

debian/patches/fix-Makefile.patch

 diff --git a/Makefile b/Makefile
-index fdf0cae..4c58098 100644
+index fdf0cae..6b7e128 100644
 --- a/Makefile
 +++ b/Makefile
-@@ -26,6 +26,8 @@ $(SUBDIRS)::
+@@ -25,7 +25,11 @@ default: all
+ $(SUBDIRS)::
  	$(MAKE) -C $@ $(MAKECMDGOALS)
  
- all clean install uninstall: $(SUBDIRS)
-+	install -D lv2/b_synth /zynthian/zynthian-plugins/lv2/b_synth
-+	install -D lv2/b_whirl /zynthian/zynthian-plugins/lv2/b_whirl
+-all clean install uninstall: $(SUBDIRS)
++all clean uninstall: $(SUBDIRS)
++
++install: $(SUBDIRS)
++	install -D lv2/b_synth $(DESTDIR)/zynthian/zynthian-plugins/lv2/b_synth
++	install -D lv2/b_whirl $(DESTDIR)/zynthian/zynthian-plugins/lv2/b_whirl
  
  doc:
  	help2man -N --help-option=-H -n 'DSP tonewheel organ' -o doc/setBfree.1 src/setBfree