Support file updates

buildroot/bin/pins_set

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 
-eval "sed -i 's/\(#define \b${2}\b\).*$/\1 ${3}/g' Marlin/pins_${1}.h"
+eval "sed -i 's/\(#define \b${2}\b\).*$/\1 ${3}/g' Marlin/src/pins/pins_${1}.h"