Genoa Unknown 486: Port 92h controls the exact same gate as the KBC, fixes #4660.

src/machine/m_at_386dx_486.c

@@ -2333,7 +2333,7 @@ machine_at_genoa486_init(const machine_t *model)
     machine_at_common_init(model);
 
     device_add(&compaq_genoa_device);
-    device_add(&port_92_device);
+    device_add(&port_92_key_device);
 
     device_add(&keyboard_at_ami_device);