cfg-savegame: add DebugMode block (#5330)

src/core/hle/service/cfg/cfg.cpp

@@ -74,6 +74,7 @@ enum ConfigBlockID {
     StateNameBlockID = 0x000B0002,
     EULAVersionBlockID = 0x000D0000,
     ConsoleModelBlockID = 0x000F0004,
+    DebugModeBlockID = 0x00130000,
 };
 
 struct UsernameBlock {
@@ -542,6 +543,11 @@ ResultCode Module::FormatConfig() {
     if (!res.IsSuccess())
         return res;
 
+    // 0x00130000 - DebugMode (0x100 for debug mode)
+    res = CreateConfigInfoBlk(DebugModeBlockID, 0x4, 0xE, zero_buffer);
+    if (!res.IsSuccess())
+        return res;
+
     // 0x00170000 - Unknown
     res = CreateConfigInfoBlk(0x00170000, 0x4, 0xE, zero_buffer);
     if (!res.IsSuccess())