config.gcc: Add support for arm926ejs, arm1026ejs, arm1136js, arm1136jfs, and armv6j.

	* config.gcc: Add support for arm926ejs, arm1026ejs, arm1136js,
	arm1136jfs, and armv6j.
	* config/arm/arm.c (FL_ARCH6J): New macro.
	(FL_VFPV2): Likewise.
	(all_cores): Add entries for arm926ejs, arm1026ejs, arm1136js,
	and arm1136jfs.
	(all_architectures): Add entry for armv6j.
	(arm_override_options): Add entries for arm926ejs, arm1026ejs,
	arm1136js, and arm1136jfs.
	* config/arm/arm.h (TARGET_CPU_arm926ej_s): New macro.
	(TARGET_CPU_arm1026ej_s): Likewise.
	(TARGET_CPU_arm1136j_s): Likewise.
	(TARGET_CPU_arm1136jf_s): Likewise.
	* doc/invoke.texi: Document new ARM cores and architecture
	variants.

From-SVN: r72694