* regset.h (struct core_regset_section): Add HUMAN_NAME.

	* regset.h (struct core_regset_section): Add HUMAN_NAME.
	* i386-linux-tdep.c (i386_linux_regset_sections): Fill in HUMAN_NAME.
	* ppc-linux-tdep.c (ppc_linux_vsx_regset_sections): Likewise.
	(ppc_linux_vmx_regset_sections): Likewise.
	(ppc_linux_fp_regset_sections): Likewise.

	* corelow.c (get_core_register_section): Constify arguments.
	(get_core_registers): Use gdbarch_core_regset_sections instead
	of hard-coded platform-specific register section names.