target/mips/mxu: Add D16MADL instruction

The instruction is similar to multiply and accumulate
but works with MXU registers set.

Signed-off-by: Siarhei Volkau <lis8215@gmail.com>
Message-Id: <20230608104222.1520143-13-lis8215@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
1 file changed