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 v4.19.269 by commit 2572ab14b73aa45b6ae7e4c089ccf119fed5cf89, it was introduced in version v4.19.264 by commit 9cf9211635b68e8e0c8cb88d43ca7dc83e4632aa. For more details please see the references link.