Finalized changing the 286-based systems to have an "internal ide" controller; these machines now have to select the desired HD controller from the menu. The Samsung 286 machine also needs its upper 384K remapped. Added machine_at_scat_remap() to implement thjs for SCAT-based boards.

src/machine/machine_at_scat.c

@@ -551,14 +551,17 @@ static void scat_init(void)
 
 void machine_at_scat_init(void)
 {
-        machine_at_ide_init();
+        machine_at_init();
+
         scat_init();
 }
 
 
-void machine_at_scat_spc4200p_init(void)
+void machine_at_scat_remap_init(void)
 {
 	machine_at_init();
+
 	mem_remap_top_384k();
+
         scat_init();
 }