target/loongarch: Prefer fast cpu_env() over slower CPU QOM cast macro

Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-16-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[thuth: Adjusted patch for hunk that moved to cpu_helper.c]
Signed-off-by: Thomas Huth <thuth@redhat.com>
5 files changed