drm/i915: Fix -Wstringop-overflow warning in call to intelreadwm_latency()
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 v4.14.282 by commit b1709d3697ef28e5a55dd0aea29804173fd7e185. For more details please see the references link.