target/loongarch: Use sys_state in cpu_helper.c when accessing CSR registers

When accessing CSR register in file cpu_helper.c, use sys_state rather
than env.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@mailo.com>
Tested-by: Song Gao <gaosong@loongson.cn>
Message-ID: <20260605082552.175336-4-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
1 file changed