include/elf:
* common.h: Add EM_U16_U8CORE, EM_TACHYUM, EM_56800V4.
#define EM_65816 257 /* WDC 65816/65C816 */
#define EM_LOONGARCH 258 /* LoongArch */
#define EM_KF32 259 /* ChipON KungFu32 */
+#define EM_U16_U8CORE 260 /* LAPIS nX-U16/U8 */
+#define EM_TACHYUM 261 /* Tachyum */
+#define EM_56800V4 262 /* NXP 56800V4 Digital Signal Controller (DSC) */
/* If it is necessary to assign new unofficial EM_* values, please pick large
random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision