media: v4l2-dv-timings.c: fix too strict blanking sanity checks
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.227 by commit 4afc77068e36cee45b39d4fdc7513de26980f72c, it was introduced in version v5.4.223 by commit b4a3a01762ae072c7f6ff2ff53b5019761288346. For more details please see the references link.