Add handler for more i386_cpu_flags

gas/ChangeLog:

	* config/tc-i386.c (cpu_flags_all_zero): Add new ARRAY_SIZE handle.
	(cpu_flags_equal): Ditto.
	(cpu_flags_and): Ditto.
	(cpu_flags_or): Ditto.
	(cpu_flags_and_not): Ditto.