hw/core/loader: Free the allocated string from size_to_str()

The string needs be be freed with g_free() according to the functions
documentation.

Coverity: CID 1642762
Fixes: f62226f7dc44 ("hw/core/loader: improve error handling in image loading functions")
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20251030015306.2279148-3-alistair.francis@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
1 file changed