msdos build correction

ENHANCED_SYMBOLS is defined by default in config.h.
The msdos build tried to #undef ENHANCED_SYMBOLS
in tilemap.c, but doing it in there created a mismatch
between the data struct definition for glyph_map in wintype.h
and the initializers generated in tilemap.c

Move the msdos build catch for ENHANCED_SYMBOLS to
one single place in config1.h so that the code and data agree.

sys/msdos/video.c

@@ -14,6 +14,7 @@
  */
 
 #include "hack.h"
+#include "wintty.h"
 
 #ifndef STUBVIDEO
 #include "pcvideo.h"
@@ -88,6 +89,14 @@ get_scr_size(void)
         txt_get_scr_size();
 }
 
+#ifdef ENHANCED_SYMBOLS
+void g_pututf8(uint8 *utf8str)
+{
+    /* not implemented for msdos (yet) */
+    nhUse(utf8str);
+}
+#endif
+
 /*
  * --------------------------------------------------------------
  * The rest of this file is only compiled if NO_TERMS is defined.