Make list of linker symbols common

That way the definitions of the assembler and the linker are always the
same.

Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>

include/asm/mylink.h

@@ -1,62 +0,0 @@
-#ifndef RGBDS_ASM_LINK_H
-#define RGBDS_ASM_LINK_H
-
-enum {
-	RPN_ADD = 0,
-	RPN_SUB,
-	RPN_MUL,
-	RPN_DIV,
-	RPN_MOD,
-	RPN_UNSUB,
-
-	RPN_OR,
-	RPN_AND,
-	RPN_XOR,
-	RPN_UNNOT,
-
-	RPN_LOGAND,
-	RPN_LOGOR,
-	RPN_LOGUNNOT,
-
-	RPN_LOGEQ,
-	RPN_LOGNE,
-	RPN_LOGGT,
-	RPN_LOGLT,
-	RPN_LOGGE,
-	RPN_LOGLE,
-
-	RPN_SHL,
-	RPN_SHR,
-
-	RPN_BANK,
-
-	RPN_HRAM,
-
-	RPN_CONST = 0x80,
-	RPN_SYM = 0x81
-};
-
-enum {
-	SECT_WRAM0 = 0,
-	SECT_VRAM,
-	SECT_ROMX,
-	SECT_ROM0,
-	SECT_HRAM,
-	SECT_WRAMX,
-	SECT_SRAM,
-	SECT_OAM
-};
-
-enum {
-	SYM_LOCAL = 0,
-	SYM_IMPORT,
-	SYM_EXPORT
-};
-
-enum {
-	PATCH_BYTE = 0,
-	PATCH_WORD_L,
-	PATCH_LONG_L
-};
-
-#endif /* RGBDS_ASM_LINK_H */