DSP ASE support

From: Mori Hiroki <yamori813_at_yahoo.co.jp>
Date: Wed, 13 Mar 2024 09:43:18 UTC
Hi

I add MIPS DSP ASE support.

https://github.com/ZRouter/freebsd-src/tree/zrouter_yamori813

I add DSP release 2 support patch to gcc also.

If you want use DSP you need add MIPS_DSP_SUPPORT by kernel option.

Ralink 24k support DSP. Atheros 24K not support DSP.
Ralink and Atheros 74K support DSP and DSP release 2.

Hiroki Mori