target/mips: Convert Loongson [D]DIVU.G opcodes to decodetree

target/mips: Convert Loongson [D]DIVU.G opcodes to decodetree

Convert DIVU.G (divide 32-bit unsigned integers) and DDIVU.G
(divide 64-bit unsigned integers) opcodes to decodetree.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20241026175349.84523-7-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>