Proper warmboot exploit impl and documentation

Side effect:
Fixed a bug where the dumped patched bootrom had the warmboot exploit patch

Co-Authored-By: Balázs Triszka <balika011@gmail.com>

bootloader/mem/sdram.h

@@ -17,8 +17,11 @@
 #ifndef _SDRAM_H_
 #define _SDRAM_H_
 
+#include "sdram_param_t210.h"
+
 void sdram_init();
-const void *sdram_get_params();
+sdram_params_t *sdram_get_params();
+sdram_params_t *sdram_get_params_patched();
 void sdram_lp0_save_params(const void *params);
 
 #endif