Fix bsd-user broken by commit b5ec5ce0e3

Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

bsd-user/main.c

@@ -759,6 +759,10 @@ int main(int argc, char **argv)
     }
 
     cpu_model = NULL;
+#if defined(cpudef_setup)
+    cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
+#endif
+
     optind = 1;
     for(;;) {
         if (optind >= argc)