NONE reloc fixes

NONE reloc fixes

Make them all zero size standard do-nothing howtos.

	* elf32-csky.c (csky_elf_howto_table <R_CKCORE_NONE>): Correct howto.
	* elf32-ft32.c (ft32_elf_howto_table <R_FT32_NONE>): Likewise.
	* elf32-gen.c (dummy): Likewise.
	* elf32-nds32.c (none_howto): Likewise.
	* elf32-nios2.c (elf_nios2_r2_howto_table_rel <R_NIOS2_NONE>):
	Likewise.
	* elf32-pru.c (elf_pru_howto_table_rel <R_PRU_NONE>): Likewise.
	* elf32-v850.c (v800_elf_howto_table <R_V810_NONE>): Likewise.
	* elf64-gen.c (dummy): Likewise.
	* elfn32-mips.c (elf_mips_howto_table_rela <R_MIPS_NONE): Likewise.
	* elfxx-mips.c (none_howto): Likewise.
	* reloc.c (none_howto): Likewise.