[aarch64] Add HiSilicon tsv110 CPU support

[aarch64] Add HiSilicon tsv110 CPU support

This patch adds HiSilicon's an mcpu: tsv110, which supports v8_4A.
It has been tested on aarch64 and no regressions from this patch.

2018-09-21  Shaokun Zhang  <zhangshaokun@hisilicon.com>
            Bo Zhou  <zbo.zhou@hisilicon.com>

	* config/aarch64/aarch64-cores.def (tsv110): New CPU.
	* config/aarch64/aarch64-tune.md: Regenerated.
	* doc/invoke.texi (AArch64 Options/-mtune): Add "tsv110".
	* config/aarch64/aarch64.c (tsv110_tunings): New tuning table.
	* config/aarch64/aarch64-cost-tables.h: Add "tsv110" extra costs.

Co-Authored-By: Bo Zhou <zbo.zhou@hisilicon.com>
From-SVN: r264470