boot: various bugfixes (b/w logo displays now)

stratosphere/boot/boot.json

@@ -123,6 +123,15 @@
                 "is_io": true
             }
         },
+        {
+            "type": "map",
+            "value": {
+                "address": "0x7000A000",
+                "size": "0x1000",
+                "is_ro": false,
+                "is_io": true
+            }
+        },
         {
             "type": "map",
             "value": {