CVE-2022-50102 video: fbdev: arkfb: Fix a divide-by-zero bug in ark_set_pixclock()

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: arkfb: Fix a divide-by-zero bug in arksetpixclock Since the user can control the arguments of the ioctl from the user space, under special arguments that may result in a divide-by-zero bug in:...