target/mips/mxu: Add D32SLL D32SLR D32SAR instructions

These instructions are same data shift in various directions, thus one
generation function is implemented for all three.

Signed-off-by: Siarhei Volkau <lis8215@gmail.com>
Message-Id: <20230608104222.1520143-26-lis8215@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
1 file changed