fix(set): stub ISettingsServer function 12 to fix AVGN 8-bit crash

Signed-off-by: Zephyron <zephyron@citron-emu.org>

src/core/hle/service/set/settings_server.cpp

@@ -101,6 +101,7 @@ ISettingsServer::ISettingsServer(Core::System& system_) : ServiceFramework{syste
         {9, C<&ISettingsServer::GetKeyCodeMap2>, "GetKeyCodeMap2"},
         {10, nullptr, "GetFirmwareVersionForDebug"},
         {11, C<&ISettingsServer::GetDeviceNickName>, "GetDeviceNickName"},
+        {12, C<&ISettingsServer::Unknown12>, "Unknown12"},
     };
     // clang-format on
 
@@ -239,4 +240,9 @@ Result ISettingsServer::GetDeviceNickName(
     R_SUCCEED();
 }
 
+Result ISettingsServer::Unknown12() {
+    LOG_WARNING(Service_SET, "(STUBBED) called");
+    R_SUCCEED();
+}
+
 } // namespace Service::Set

src/core/hle/service/set/settings_server.h

@@ -46,6 +46,8 @@ private:
 
     Result GetDeviceNickName(
         OutLargeData<std::array<u8, 0x80>, BufferAttr_HipcMapAlias> out_device_name);
+
+    Result Unknown12();
 };
 
 } // namespace Service::Set