[ARM] Remove duplicated enum type for CPU identifiers

[ARM] Remove duplicated enum type for CPU identifiers

	* arm.h (target_cpus): Delete.
	* arm-opts.h (enum processor_type): Prefix entires with TARGET_CPU_.
	* arm.c (all_cores): Prefix IDENT with TARGET_CPU_.
	(all_architectures): Likewise.
	(arm_option_override): Adjust use of CPU enums.
	(arm_sched_reorder): Likewise.
	* vfp.md (movdi_vfp, movdi_vfp_cortexa8): Likewise.
	* arm.opt (mcpu, mtune): Adjust use of CPU enums.
	* arm/genopt.sh (processor_type): Prefix enumeration entries with
	TARGET_CPU_.
	* arm-tables.opt: Regenerated.

From-SVN: r242034