crx: ubsan: cannot be represented

crx: ubsan: cannot be represented

	* config/tc-crx.c: Formatting.
	(CRX_PRINT): Wrap params in parentheses.  Remove parens from uses
	throughout file.
	(reset_vars, get_register, get_copregister, get_optype, get_opbits),
	(get_opflags, get_number_of_operands, parse_operand, gettrap),
	(handle_LoadStor, getconstant, check_range, getreg_image),
	(parse_operands, parse_insn, print_operand, print_constant),
	(exponent2scale, mask_reg, process_label_constant, set_operand),
	(assemble_insn, print_insn): Delete unnecessary forward declaration.
	(print_insn): Make static.
	(print_constant): Make "constant" unsigned.
	(assemble_insn): Tidy REVERSE_MATCH index calc.
	* expr.c (generic_bignum_to_int32): Cast elements to valueT.