semihosting/arm-compat-semi: Avoid using hardcoded /tmp

semihosting/arm-compat-semi: Avoid using hardcoded /tmp

Use g_get_tmp_dir() to get the directory to use for temporary files.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221006151927.2079583-2-bmeng.cn@gmail.com>
Message-Id: <20221027183637.2772968-11-alex.bennee@linaro.org>