Implement ARC NPS-400 Ultra Ip and Miscellaneous instructions.

Implement ARC NPS-400 Ultra Ip and Miscellaneous instructions.

opcodes	* arc-nps400-tbl.h: Add Ultra Ip and Miscellaneous instructions format.
	* arc-opc.c: Add defines. e.g. F_NJ, F_NM , F_NO_T, F_NPS_SR, F_NPS_M, F_NPS_CORE, F_NPS_ALL.
	(insert_nps_misc_imm_offset): New function.
	(extract_nps_misc imm_offset): New function.
	(arc_num_flag_operands): Add F_NJ, F_NM, F_NO_T.
	(arc_flag_special_cases): Add F_NJ, F_NM, F_NO_T.

include * opcode/arc.h (insn_class_t): Add ULTRAIP and MISC class.

gas     * testsuite/gas/arc/nps400-12.s: New file.
        * testsuite/gas/arc/nps400-12.d: New file.