* tic80-opc.c (tic80_predefined_symbols): Table of name/value

	* tic80-opc.c (tic80_predefined_symbols): Table of name/value
	pairs for all predefined symbols recognized by the assembler.
	Also used by the disassembling routines.
	(tic80_symbol_to_value): New function.
	(tic80_value_to_symbol): New function.
	* tic80-dis.c (print_operand_control_register,
 	print_operand_condition_code, print_operand_bitnum):
	Remove private tables and use tic80_value_to_symbol function.