ams: add enum recognition for 23.5.0

fusee/program/source/fusee_setup_horizon.cpp

@@ -271,6 +271,8 @@ namespace ams::nxboot {
                         return ams::TargetFirmware_22_0_0;
                     } else if (std::memcmp(package1 + 0x10, "20260730", 8) == 0) {
                         return ams::TargetFirmware_23_0_0;
+                    } else if (std::memcmp(package1 + 0x10, "20260930", 8) == 0) {
+                        return ams::TargetFirmware_23_5_0;
                     }
                     break;
                 default: