motherboard extras can now be configured

c64/kernal/init/e5a0.setup_vicii.s

@@ -18,6 +18,8 @@ setup_vicii:
  	dex
  	bpl !-
 
+#if !CONFIG_MB_MEGA_65 && !CONFIG_MB_ULTIMATE_64
+
  	// Disable C128 extra keys - just to be sure they won't interfere with anything
 
  	stx VIC_XSCAN
@@ -26,6 +28,8 @@ setup_vicii:
 
  	stx VIC_CLKRATE
 
+#endif
+
 	// Set up default IO values
 	// - [CM64] page 129       - VIC_SCROLY
 	// - [CM64] pages 140-144  - VIC_SCROLX