ROM loading typos fixed, MIDI typo fixed, some warnings fixed. Still messing with the ROM on some PS/2 models not working.

src/machine/machine_ps1.c

@@ -342,7 +342,10 @@ machine_ps1_common_init(machine_t *model)
 
         machine_common_init(model);
 
+#if 0
+	/* Already done in machine.c */
 	mem_add_bios();
+#endif
         pit_set_out_func(&pit, 1, pit_refresh_timer_at);
         dma16_init();
         if (romset != ROM_IBMPS1_2011)

src/machine/machine_ps2_isa.c

@@ -160,6 +160,9 @@ machine_ps2_m30_286_init(machine_t *model)
 
         machine_common_init(model);
 
+#if 0
+	/* Already done in machine.c */
+#endif
         mem_add_bios();
         pit_set_out_func(&pit, 1, pit_refresh_timer_at);
         dma16_init();

src/machine/machine_ps2_mca.c

@@ -809,8 +809,8 @@ machine_ps2_common_init(machine_t *model)
 
         machine_common_init(model);
 
-#if 0
-	/* Already done in pc.c. */
+#if 1
+	/* Already done in machine.c. */
         mem_add_bios();
 #endif
         dma16_init();