target/ppc: Implemented vector module quadword

target/ppc: Implemented vector module quadword

Implement the following PowerISA v3.1 instructions:
vmodsq: Vector Modulo Signed Quadword
vmoduq: Vector Modulo Unsigned Quadword

Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/744
Message-Id: <20220525134954.85056-9-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>