configure.gcc: Default ep9312 to hard-float.

configure.gcc: Default ep9312 to hard-float.

	* configure.gcc: Default ep9312 to hard-float.
	* config/arm/arm-cores.def: Add ARCH field.
	* config/arm/arm.c (FL_FOR_ARCH*): Define.
	(arm_arch_cirrus): New variable.
	(all_cores): Set and use arch.
	(all_architectures): Ditto.
	(arm_arch_name): New variable.
	(arm_override_options): Set it. Use [SUB]TARGET_CPU_DEFAULT.
	Set and use arm_arch_cirrus.
	* config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Set arch defines.
	(enum processor_type): Update ARM_CORE define.
	(enum target_cpus): Add.  Replaces TARGET_CPU_* defines.
	(CPP_SPEC): Remove %(cpp_cpu_arch).
	(CPP_ARCH_DEFAULT_SPEC): Remove.
	(CPP_CPU_ARCH_SPEC): Remove.
	(EXTRA_SPECS): Don't use CPP_*ARCH*_SPEC.
	(FPUTYPE_DEFAULT): Don't define here.

From-SVN: r81336