Fix Xcode 12 build failure.

genplusgx_source/cart_hw/sms_cart.c

@@ -39,6 +39,7 @@
 #include "shared.h"
 #include "eeprom_93c.h"
 #include "terebi_oekaki.h"
+#include "scrc32.h"
 
 #define MAPPER_NONE        (0x00)
 #define MAPPER_TEREBI      (0x01)

genplusgx_source/cart_hw/sram.c

@@ -37,6 +37,7 @@
  ****************************************************************************************/
 
 #include "shared.h"
+#include "scrc32.h"
 
 T_SRAM sram;